Home / 931,569.60-1,396,432.80-457,867.20

Finding the Fourth Proportional to 931,569.60, 1,396,432.80 and 457,867.20

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Solution

The fourth proportional to 931,569.60, 1,396,432.80 and 457,867.20 is: 686,347.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,569.60 : 1,396,432.80 = 457,867.20 : x
  2. Step 2: Convert to fraction form
    931,569.60/1,396,432.80 = 457,867.20/x
  3. Step 3: Cross multiply
    931,569.60x = 1,396,432.80 × 457,867.20
  4. Step 4: Simplify right side
    931,569.60x = 639,380,776,124.16
  5. Step 5: Solve for x
    x = 639,380,776,124.16/931,569.60
  6. Step 6: Final answer
    x = 686,347.83

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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.