Home / 871,344.32-1,307,097.16-338,905.76

Finding the Fourth Proportional to 871,344.32, 1,307,097.16 and 338,905.76

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Solution

The fourth proportional to 871,344.32, 1,307,097.16 and 338,905.76 is: 508,390.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,344.32 : 1,307,097.16 = 338,905.76 : x
  2. Step 2: Convert to fraction form
    871,344.32/1,307,097.16 = 338,905.76/x
  3. Step 3: Cross multiply
    871,344.32x = 1,307,097.16 × 338,905.76
  4. Step 4: Simplify right side
    871,344.32x = 442,982,756,403.64
  5. Step 5: Solve for x
    x = 442,982,756,403.64/871,344.32
  6. Step 6: Final answer
    x = 508,390.02

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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.