Home / 460,047.20-690,070.80-127,623.20

Finding the Fourth Proportional to 460,047.20, 690,070.80 and 127,623.20

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Solution

The fourth proportional to 460,047.20, 690,070.80 and 127,623.20 is: 191,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,047.20 : 690,070.80 = 127,623.20 : x
  2. Step 2: Convert to fraction form
    460,047.20/690,070.80 = 127,623.20/x
  3. Step 3: Cross multiply
    460,047.20x = 690,070.80 × 127,623.20
  4. Step 4: Simplify right side
    460,047.20x = 88,069,043,722.56
  5. Step 5: Solve for x
    x = 88,069,043,722.56/460,047.20
  6. Step 6: Final answer
    x = 191,434.80

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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.