Home / 875,789.53-1,208,562.14-513,454.72

Finding the Fourth Proportional to 875,789.53, 1,208,562.14 and 513,454.72

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Solution

The fourth proportional to 875,789.53, 1,208,562.14 and 513,454.72 is: 708,551.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,789.53 : 1,208,562.14 = 513,454.72 : x
  2. Step 2: Convert to fraction form
    875,789.53/1,208,562.14 = 513,454.72/x
  3. Step 3: Cross multiply
    875,789.53x = 1,208,562.14 × 513,454.72
  4. Step 4: Simplify right side
    875,789.53x = 620,541,931,533.08
  5. Step 5: Solve for x
    x = 620,541,931,533.08/875,789.53
  6. Step 6: Final answer
    x = 708,551.44

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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.