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Finding the Fourth Proportional to 704,675.40, 972,447.12 and 382,377.30

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Solution

The fourth proportional to 704,675.40, 972,447.12 and 382,377.30 is: 527,678.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,675.40 : 972,447.12 = 382,377.30 : x
  2. Step 2: Convert to fraction form
    704,675.40/972,447.12 = 382,377.30/x
  3. Step 3: Cross multiply
    704,675.40x = 972,447.12 × 382,377.30
  4. Step 4: Simplify right side
    704,675.40x = 371,841,704,138.38
  5. Step 5: Solve for x
    x = 371,841,704,138.38/704,675.40
  6. Step 6: Final answer
    x = 527,678.00

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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.