Home / 726,926.40-1,090,000.80-253,627.20

Finding the Fourth Proportional to 726,926.40, 1,090,000.80 and 253,627.20

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Solution

The fourth proportional to 726,926.40, 1,090,000.80 and 253,627.20 is: 380,305.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,926.40 : 1,090,000.80 = 253,627.20 : x
  2. Step 2: Convert to fraction form
    726,926.40/1,090,000.80 = 253,627.20/x
  3. Step 3: Cross multiply
    726,926.40x = 1,090,000.80 × 253,627.20
  4. Step 4: Simplify right side
    726,926.40x = 276,453,850,901.76
  5. Step 5: Solve for x
    x = 276,453,850,901.76/726,926.40
  6. Step 6: Final answer
    x = 380,305.15

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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.