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Finding the Fourth Proportional to 562,390.56, 775,394.98 and 469,389.80

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Solution

The fourth proportional to 562,390.56, 775,394.98 and 469,389.80 is: 647,170.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,390.56 : 775,394.98 = 469,389.80 : x
  2. Step 2: Convert to fraction form
    562,390.56/775,394.98 = 469,389.80/x
  3. Step 3: Cross multiply
    562,390.56x = 775,394.98 × 469,389.80
  4. Step 4: Simplify right side
    562,390.56x = 363,962,495,348.22
  5. Step 5: Solve for x
    x = 363,962,495,348.22/562,390.56
  6. Step 6: Final answer
    x = 647,170.35

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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.