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Finding the Fourth Proportional to 609,494.85, 913,401.50 and 459,570.38

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Solution

The fourth proportional to 609,494.85, 913,401.50 and 459,570.38 is: 688,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,494.85 : 913,401.50 = 459,570.38 : x
  2. Step 2: Convert to fraction form
    609,494.85/913,401.50 = 459,570.38/x
  3. Step 3: Cross multiply
    609,494.85x = 913,401.50 × 459,570.38
  4. Step 4: Simplify right side
    609,494.85x = 419,772,267,582.71
  5. Step 5: Solve for x
    x = 419,772,267,582.71/609,494.85
  6. Step 6: Final answer
    x = 688,721.60

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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.