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Finding the Fourth Proportional to 659,547.66, 988,652.84 and 260,469.57

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Solution

The fourth proportional to 659,547.66, 988,652.84 and 260,469.57 is: 390,440.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,547.66 : 988,652.84 = 260,469.57 : x
  2. Step 2: Convert to fraction form
    659,547.66/988,652.84 = 260,469.57/x
  3. Step 3: Cross multiply
    659,547.66x = 988,652.84 × 260,469.57
  4. Step 4: Simplify right side
    659,547.66x = 257,513,978,811.73
  5. Step 5: Solve for x
    x = 257,513,978,811.73/659,547.66
  6. Step 6: Final answer
    x = 390,440.29

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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.