Home / 726,151.80-1,087,931.70-351,348.60

Finding the Fourth Proportional to 726,151.80, 1,087,931.70 and 351,348.60

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Solution

The fourth proportional to 726,151.80, 1,087,931.70 and 351,348.60 is: 526,395.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,151.80 : 1,087,931.70 = 351,348.60 : x
  2. Step 2: Convert to fraction form
    726,151.80/1,087,931.70 = 351,348.60/x
  3. Step 3: Cross multiply
    726,151.80x = 1,087,931.70 × 351,348.60
  4. Step 4: Simplify right side
    726,151.80x = 382,243,279,690.62
  5. Step 5: Solve for x
    x = 382,243,279,690.62/726,151.80
  6. Step 6: Final answer
    x = 526,395.83

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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.