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Finding the Fourth Proportional to 577,799.75, 865,989.78 and 324,547.89

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Solution

The fourth proportional to 577,799.75, 865,989.78 and 324,547.89 is: 486,423.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,799.75 : 865,989.78 = 324,547.89 : x
  2. Step 2: Convert to fraction form
    577,799.75/865,989.78 = 324,547.89/x
  3. Step 3: Cross multiply
    577,799.75x = 865,989.78 × 324,547.89
  4. Step 4: Simplify right side
    577,799.75x = 281,055,155,860.56
  5. Step 5: Solve for x
    x = 281,055,155,860.56/577,799.75
  6. Step 6: Final answer
    x = 486,423.12

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1.5x scale

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.