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Finding the Fourth Proportional to 900,301.60, 1,349,607.60 and 339,712.80

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Solution

The fourth proportional to 900,301.60, 1,349,607.60 and 339,712.80 is: 509,250.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,301.60 : 1,349,607.60 = 339,712.80 : x
  2. Step 2: Convert to fraction form
    900,301.60/1,349,607.60 = 339,712.80/x
  3. Step 3: Cross multiply
    900,301.60x = 1,349,607.60 × 339,712.80
  4. Step 4: Simplify right side
    900,301.60x = 458,478,976,697.28
  5. Step 5: Solve for x
    x = 458,478,976,697.28/900,301.60
  6. Step 6: Final answer
    x = 509,250.43

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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.