Home / 930,611.28-1,284,243.84-522,713.76

Finding the Fourth Proportional to 930,611.28, 1,284,243.84 and 522,713.76

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Solution

The fourth proportional to 930,611.28, 1,284,243.84 and 522,713.76 is: 721,345.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,611.28 : 1,284,243.84 = 522,713.76 : x
  2. Step 2: Convert to fraction form
    930,611.28/1,284,243.84 = 522,713.76/x
  3. Step 3: Cross multiply
    930,611.28x = 1,284,243.84 × 522,713.76
  4. Step 4: Simplify right side
    930,611.28x = 671,291,926,363.24
  5. Step 5: Solve for x
    x = 671,291,926,363.24/930,611.28
  6. Step 6: Final answer
    x = 721,345.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.