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Finding the Fourth Proportional to 704,677.90, 972,450.57 and 382,379.80

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Solution

The fourth proportional to 704,677.90, 972,450.57 and 382,379.80 is: 527,681.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,677.90 : 972,450.57 = 382,379.80 : x
  2. Step 2: Convert to fraction form
    704,677.90/972,450.57 = 382,379.80/x
  3. Step 3: Cross multiply
    704,677.90x = 972,450.57 × 382,379.80
  4. Step 4: Simplify right side
    704,677.90x = 371,845,454,466.49
  5. Step 5: Solve for x
    x = 371,845,454,466.49/704,677.90
  6. Step 6: Final answer
    x = 527,681.45

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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.