Home / 460,038.40-690,079.20-144,505.60

Finding the Fourth Proportional to 460,038.40, 690,079.20 and 144,505.60

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Solution

The fourth proportional to 460,038.40, 690,079.20 and 144,505.60 is: 216,765.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,038.40 : 690,079.20 = 144,505.60 : x
  2. Step 2: Convert to fraction form
    460,038.40/690,079.20 = 144,505.60/x
  3. Step 3: Cross multiply
    460,038.40x = 690,079.20 × 144,505.60
  4. Step 4: Simplify right side
    460,038.40x = 99,720,308,843.52
  5. Step 5: Solve for x
    x = 99,720,308,843.52/460,038.40
  6. Step 6: Final answer
    x = 216,765.18

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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.