Home / 708,606.72-1,061,915.40-387,934.20

Finding the Fourth Proportional to 708,606.72, 1,061,915.40 and 387,934.20

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Solution

The fourth proportional to 708,606.72, 1,061,915.40 and 387,934.20 is: 581,356.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,606.72 : 1,061,915.40 = 387,934.20 : x
  2. Step 2: Convert to fraction form
    708,606.72/1,061,915.40 = 387,934.20/x
  3. Step 3: Cross multiply
    708,606.72x = 1,061,915.40 × 387,934.20
  4. Step 4: Simplify right side
    708,606.72x = 411,953,301,166.68
  5. Step 5: Solve for x
    x = 411,953,301,166.68/708,606.72
  6. Step 6: Final answer
    x = 581,356.75

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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.