Home / 688,913.28-949,298.18-532,916.87

Finding the Fourth Proportional to 688,913.28, 949,298.18 and 532,916.87

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Solution

The fourth proportional to 688,913.28, 949,298.18 and 532,916.87 is: 734,340.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,913.28 : 949,298.18 = 532,916.87 : x
  2. Step 2: Convert to fraction form
    688,913.28/949,298.18 = 532,916.87/x
  3. Step 3: Cross multiply
    688,913.28x = 949,298.18 × 532,916.87
  4. Step 4: Simplify right side
    688,913.28x = 505,897,007,371.22
  5. Step 5: Solve for x
    x = 505,897,007,371.22/688,913.28
  6. Step 6: Final answer
    x = 734,340.62

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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.