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Finding the Fourth Proportional to 562,390.38, 775,394.72 and 469,389.62

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Solution

The fourth proportional to 562,390.38, 775,394.72 and 469,389.62 is: 647,170.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,390.38 : 775,394.72 = 469,389.62 : x
  2. Step 2: Convert to fraction form
    562,390.38/775,394.72 = 469,389.62/x
  3. Step 3: Cross multiply
    562,390.38x = 775,394.72 × 469,389.62
  4. Step 4: Simplify right side
    562,390.38x = 363,962,232,970.81
  5. Step 5: Solve for x
    x = 363,962,232,970.81/562,390.38
  6. Step 6: Final answer
    x = 647,170.09

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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.