Home / 748,730.28-1,123,211.58-316,449.57

Finding the Fourth Proportional to 748,730.28, 1,123,211.58 and 316,449.57

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Solution

The fourth proportional to 748,730.28, 1,123,211.58 and 316,449.57 is: 474,723.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,730.28 : 1,123,211.58 = 316,449.57 : x
  2. Step 2: Convert to fraction form
    748,730.28/1,123,211.58 = 316,449.57/x
  3. Step 3: Cross multiply
    748,730.28x = 1,123,211.58 × 316,449.57
  4. Step 4: Simplify right side
    748,730.28x = 355,439,821,510.02
  5. Step 5: Solve for x
    x = 355,439,821,510.02/748,730.28
  6. Step 6: Final answer
    x = 474,723.45

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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.