Home / 749,356.74-1,123,509.42-275,981.40

Finding the Fourth Proportional to 749,356.74, 1,123,509.42 and 275,981.40

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Solution

The fourth proportional to 749,356.74, 1,123,509.42 and 275,981.40 is: 413,778.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,356.74 : 1,123,509.42 = 275,981.40 : x
  2. Step 2: Convert to fraction form
    749,356.74/1,123,509.42 = 275,981.40/x
  3. Step 3: Cross multiply
    749,356.74x = 1,123,509.42 × 275,981.40
  4. Step 4: Simplify right side
    749,356.74x = 310,067,702,644.79
  5. Step 5: Solve for x
    x = 310,067,702,644.79/749,356.74
  6. Step 6: Final answer
    x = 413,778.49

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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.