Home / 690,947.40-1,034,080.20-424,876.44

Finding the Fourth Proportional to 690,947.40, 1,034,080.20 and 424,876.44

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Solution

The fourth proportional to 690,947.40, 1,034,080.20 and 424,876.44 is: 635,875.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,947.40 : 1,034,080.20 = 424,876.44 : x
  2. Step 2: Convert to fraction form
    690,947.40/1,034,080.20 = 424,876.44/x
  3. Step 3: Cross multiply
    690,947.40x = 1,034,080.20 × 424,876.44
  4. Step 4: Simplify right side
    690,947.40x = 439,356,314,050.49
  5. Step 5: Solve for x
    x = 439,356,314,050.49/690,947.40
  6. Step 6: Final answer
    x = 635,875.20

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1.5x scale

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.