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Finding the Fourth Proportional to 407,559.92, 612,336.20 and 384,900.17

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Solution

The fourth proportional to 407,559.92, 612,336.20 and 384,900.17 is: 578,291.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,559.92 : 612,336.20 = 384,900.17 : x
  2. Step 2: Convert to fraction form
    407,559.92/612,336.20 = 384,900.17/x
  3. Step 3: Cross multiply
    407,559.92x = 612,336.20 × 384,900.17
  4. Step 4: Simplify right side
    407,559.92x = 235,688,302,490.97
  5. Step 5: Solve for x
    x = 235,688,302,490.97/407,559.92
  6. Step 6: Final answer
    x = 578,291.18

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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.