Home / 905,990.81-1,250,275.73-498,095.52

Finding the Fourth Proportional to 905,990.81, 1,250,275.73 and 498,095.52

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Solution

The fourth proportional to 905,990.81, 1,250,275.73 and 498,095.52 is: 687,376.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,990.81 : 1,250,275.73 = 498,095.52 : x
  2. Step 2: Convert to fraction form
    905,990.81/1,250,275.73 = 498,095.52/x
  3. Step 3: Cross multiply
    905,990.81x = 1,250,275.73 × 498,095.52
  4. Step 4: Simplify right side
    905,990.81x = 622,756,737,387.25
  5. Step 5: Solve for x
    x = 622,756,737,387.25/905,990.81
  6. Step 6: Final answer
    x = 687,376.44

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1.5x scale

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.