Home / 870,228.30-1,305,342.45-496,289.10

Finding the Fourth Proportional to 870,228.30, 1,305,342.45 and 496,289.10

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Solution

The fourth proportional to 870,228.30, 1,305,342.45 and 496,289.10 is: 744,433.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,228.30 : 1,305,342.45 = 496,289.10 : x
  2. Step 2: Convert to fraction form
    870,228.30/1,305,342.45 = 496,289.10/x
  3. Step 3: Cross multiply
    870,228.30x = 1,305,342.45 × 496,289.10
  4. Step 4: Simplify right side
    870,228.30x = 647,827,229,702.30
  5. Step 5: Solve for x
    x = 647,827,229,702.30/870,228.30
  6. Step 6: Final answer
    x = 744,433.65

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.