Home / 890,417.44-1,228,779.84-482,520.16

Finding the Fourth Proportional to 890,417.44, 1,228,779.84 and 482,520.16

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Solution

The fourth proportional to 890,417.44, 1,228,779.84 and 482,520.16 is: 665,879.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,417.44 : 1,228,779.84 = 482,520.16 : x
  2. Step 2: Convert to fraction form
    890,417.44/1,228,779.84 = 482,520.16/x
  3. Step 3: Cross multiply
    890,417.44x = 1,228,779.84 × 482,520.16
  4. Step 4: Simplify right side
    890,417.44x = 592,911,045,001.58
  5. Step 5: Solve for x
    x = 592,911,045,001.58/890,417.44
  6. Step 6: Final answer
    x = 665,879.87

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.