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Finding the Fourth Proportional to 960,001.60, 1,440,002.40 and 399,438.40

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Solution

The fourth proportional to 960,001.60, 1,440,002.40 and 399,438.40 is: 599,157.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    960,001.60 : 1,440,002.40 = 399,438.40 : x
  2. Step 2: Convert to fraction form
    960,001.60/1,440,002.40 = 399,438.40/x
  3. Step 3: Cross multiply
    960,001.60x = 1,440,002.40 × 399,438.40
  4. Step 4: Simplify right side
    960,001.60x = 575,192,254,652.16
  5. Step 5: Solve for x
    x = 575,192,254,652.16/960,001.60
  6. Step 6: Final answer
    x = 599,157.60

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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.