Home / 642,922.03-887,235.96-371,001.34

Finding the Fourth Proportional to 642,922.03, 887,235.96 and 371,001.34

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Solution

The fourth proportional to 642,922.03, 887,235.96 and 371,001.34 is: 511,983.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,922.03 : 887,235.96 = 371,001.34 : x
  2. Step 2: Convert to fraction form
    642,922.03/887,235.96 = 371,001.34/x
  3. Step 3: Cross multiply
    642,922.03x = 887,235.96 × 371,001.34
  4. Step 4: Simplify right side
    642,922.03x = 329,165,730,056.19
  5. Step 5: Solve for x
    x = 329,165,730,056.19/642,922.03
  6. Step 6: Final answer
    x = 511,983.90

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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.