Home / 747,825.20-1,121,737.80-249,189.20

Finding the Fourth Proportional to 747,825.20, 1,121,737.80 and 249,189.20

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Solution

The fourth proportional to 747,825.20, 1,121,737.80 and 249,189.20 is: 373,783.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,825.20 : 1,121,737.80 = 249,189.20 : x
  2. Step 2: Convert to fraction form
    747,825.20/1,121,737.80 = 249,189.20/x
  3. Step 3: Cross multiply
    747,825.20x = 1,121,737.80 × 249,189.20
  4. Step 4: Simplify right side
    747,825.20x = 279,524,944,991.76
  5. Step 5: Solve for x
    x = 279,524,944,991.76/747,825.20
  6. Step 6: Final answer
    x = 373,783.80

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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.