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Finding the Fourth Proportional to 620,894.70, 930,613.05 and 614,246.22

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Solution

The fourth proportional to 620,894.70, 930,613.05 and 614,246.22 is: 920,648.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,894.70 : 930,613.05 = 614,246.22 : x
  2. Step 2: Convert to fraction form
    620,894.70/930,613.05 = 614,246.22/x
  3. Step 3: Cross multiply
    620,894.70x = 930,613.05 × 614,246.22
  4. Step 4: Simplify right side
    620,894.70x = 571,625,548,245.17
  5. Step 5: Solve for x
    x = 571,625,548,245.17/620,894.70
  6. Step 6: Final answer
    x = 920,648.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.