Home / 748,634.40-1,123,000.20-394,340.40

Finding the Fourth Proportional to 748,634.40, 1,123,000.20 and 394,340.40

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Solution

The fourth proportional to 748,634.40, 1,123,000.20 and 394,340.40 is: 591,536.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,634.40 : 1,123,000.20 = 394,340.40 : x
  2. Step 2: Convert to fraction form
    748,634.40/1,123,000.20 = 394,340.40/x
  3. Step 3: Cross multiply
    748,634.40x = 1,123,000.20 × 394,340.40
  4. Step 4: Simplify right side
    748,634.40x = 442,844,348,068.08
  5. Step 5: Solve for x
    x = 442,844,348,068.08/748,634.40
  6. Step 6: Final answer
    x = 591,536.20

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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.