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Finding the Fourth Proportional to 704,425.80, 972,109.48 and 382,135.90

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Solution

The fourth proportional to 704,425.80, 972,109.48 and 382,135.90 is: 527,348.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,425.80 : 972,109.48 = 382,135.90 : x
  2. Step 2: Convert to fraction form
    704,425.80/972,109.48 = 382,135.90/x
  3. Step 3: Cross multiply
    704,425.80x = 972,109.48 × 382,135.90
  4. Step 4: Simplify right side
    704,425.80x = 371,477,927,704.16
  5. Step 5: Solve for x
    x = 371,477,927,704.16/704,425.80
  6. Step 6: Final answer
    x = 527,348.55

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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.