Home / 642,832.78-887,117.26-370,957.10

Finding the Fourth Proportional to 642,832.78, 887,117.26 and 370,957.10

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Solution

The fourth proportional to 642,832.78, 887,117.26 and 370,957.10 is: 511,925.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,832.78 : 887,117.26 = 370,957.10 : x
  2. Step 2: Convert to fraction form
    642,832.78/887,117.26 = 370,957.10/x
  3. Step 3: Cross multiply
    642,832.78x = 887,117.26 × 370,957.10
  4. Step 4: Simplify right side
    642,832.78x = 329,082,446,129.55
  5. Step 5: Solve for x
    x = 329,082,446,129.55/642,832.78
  6. Step 6: Final answer
    x = 511,925.43

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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.