Home / 485,944.94-670,737.39-282,061.55

Finding the Fourth Proportional to 485,944.94, 670,737.39 and 282,061.55

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Solution

The fourth proportional to 485,944.94, 670,737.39 and 282,061.55 is: 389,322.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,944.94 : 670,737.39 = 282,061.55 : x
  2. Step 2: Convert to fraction form
    485,944.94/670,737.39 = 282,061.55/x
  3. Step 3: Cross multiply
    485,944.94x = 670,737.39 × 282,061.55
  4. Step 4: Simplify right side
    485,944.94x = 189,189,224,512.67
  5. Step 5: Solve for x
    x = 189,189,224,512.67/485,944.94
  6. Step 6: Final answer
    x = 389,322.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.