Home / 746,724.70-1,120,087.05-430,812.55

Finding the Fourth Proportional to 746,724.70, 1,120,087.05 and 430,812.55

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Solution

The fourth proportional to 746,724.70, 1,120,087.05 and 430,812.55 is: 646,218.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,724.70 : 1,120,087.05 = 430,812.55 : x
  2. Step 2: Convert to fraction form
    746,724.70/1,120,087.05 = 430,812.55/x
  3. Step 3: Cross multiply
    746,724.70x = 1,120,087.05 × 430,812.55
  4. Step 4: Simplify right side
    746,724.70x = 482,547,558,232.48
  5. Step 5: Solve for x
    x = 482,547,558,232.48/746,724.70
  6. Step 6: Final answer
    x = 646,218.83

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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.