Home / 708,139.80-1,062,209.70-638,155.80

Finding the Fourth Proportional to 708,139.80, 1,062,209.70 and 638,155.80

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Solution

The fourth proportional to 708,139.80, 1,062,209.70 and 638,155.80 is: 957,233.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,139.80 : 1,062,209.70 = 638,155.80 : x
  2. Step 2: Convert to fraction form
    708,139.80/1,062,209.70 = 638,155.80/x
  3. Step 3: Cross multiply
    708,139.80x = 1,062,209.70 × 638,155.80
  4. Step 4: Simplify right side
    708,139.80x = 677,855,280,871.26
  5. Step 5: Solve for x
    x = 677,855,280,871.26/708,139.80
  6. Step 6: Final answer
    x = 957,233.70

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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.