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Finding the Fourth Proportional to 577,499.40, 865,989.90 and 222,395.40

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Solution

The fourth proportional to 577,499.40, 865,989.90 and 222,395.40 is: 333,493.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,499.40 : 865,989.90 = 222,395.40 : x
  2. Step 2: Convert to fraction form
    577,499.40/865,989.90 = 222,395.40/x
  3. Step 3: Cross multiply
    577,499.40x = 865,989.90 × 222,395.40
  4. Step 4: Simplify right side
    577,499.40x = 192,592,170,206.46
  5. Step 5: Solve for x
    x = 192,592,170,206.46/577,499.40
  6. Step 6: Final answer
    x = 333,493.28

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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.