Home / 610,332.09-842,155.90-406,687.15

Finding the Fourth Proportional to 610,332.09, 842,155.90 and 406,687.15

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Solution

The fourth proportional to 610,332.09, 842,155.90 and 406,687.15 is: 561,160.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,332.09 : 842,155.90 = 406,687.15 : x
  2. Step 2: Convert to fraction form
    610,332.09/842,155.90 = 406,687.15/x
  3. Step 3: Cross multiply
    610,332.09x = 842,155.90 × 406,687.15
  4. Step 4: Simplify right side
    610,332.09x = 342,493,982,862.66
  5. Step 5: Solve for x
    x = 342,493,982,862.66/610,332.09
  6. Step 6: Final answer
    x = 561,160.05

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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.