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Finding the Fourth Proportional to 580,313.16, 800,150.40 and 489,508.92

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Solution

The fourth proportional to 580,313.16, 800,150.40 and 489,508.92 is: 674,947.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,313.16 : 800,150.40 = 489,508.92 : x
  2. Step 2: Convert to fraction form
    580,313.16/800,150.40 = 489,508.92/x
  3. Step 3: Cross multiply
    580,313.16x = 800,150.40 × 489,508.92
  4. Step 4: Simplify right side
    580,313.16x = 391,680,758,141.57
  5. Step 5: Solve for x
    x = 391,680,758,141.57/580,313.16
  6. Step 6: Final answer
    x = 674,947.23

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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.