Home / 460,293.60-690,479.37-140,517.12

Finding the Fourth Proportional to 460,293.60, 690,479.37 and 140,517.12

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Solution

The fourth proportional to 460,293.60, 690,479.37 and 140,517.12 is: 210,787.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,293.60 : 690,479.37 = 140,517.12 : x
  2. Step 2: Convert to fraction form
    460,293.60/690,479.37 = 140,517.12/x
  3. Step 3: Cross multiply
    460,293.60x = 690,479.37 × 140,517.12
  4. Step 4: Simplify right side
    460,293.60x = 97,024,172,491.81
  5. Step 5: Solve for x
    x = 97,024,172,491.81/460,293.60
  6. Step 6: Final answer
    x = 210,787.58

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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.