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Finding the Fourth Proportional to 609,615.20, 915,459.60 and 452,021.60

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Solution

The fourth proportional to 609,615.20, 915,459.60 and 452,021.60 is: 678,801.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,615.20 : 915,459.60 = 452,021.60 : x
  2. Step 2: Convert to fraction form
    609,615.20/915,459.60 = 452,021.60/x
  3. Step 3: Cross multiply
    609,615.20x = 915,459.60 × 452,021.60
  4. Step 4: Simplify right side
    609,615.20x = 413,807,513,127.36
  5. Step 5: Solve for x
    x = 413,807,513,127.36/609,615.20
  6. Step 6: Final answer
    x = 678,801.17

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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.