Home / 745,861.46-1,029,018.92-487,885.55

Finding the Fourth Proportional to 745,861.46, 1,029,018.92 and 487,885.55

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Solution

The fourth proportional to 745,861.46, 1,029,018.92 and 487,885.55 is: 673,105.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,861.46 : 1,029,018.92 = 487,885.55 : x
  2. Step 2: Convert to fraction form
    745,861.46/1,029,018.92 = 487,885.55/x
  3. Step 3: Cross multiply
    745,861.46x = 1,029,018.92 × 487,885.55
  4. Step 4: Simplify right side
    745,861.46x = 502,043,454,160.08
  5. Step 5: Solve for x
    x = 502,043,454,160.08/745,861.46
  6. Step 6: Final answer
    x = 673,105.51

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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.