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Finding the Fourth Proportional to 832,409.92, 1,148,728.72 and 450,436.70

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Solution

The fourth proportional to 832,409.92, 1,148,728.72 and 450,436.70 is: 621,604.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,409.92 : 1,148,728.72 = 450,436.70 : x
  2. Step 2: Convert to fraction form
    832,409.92/1,148,728.72 = 450,436.70/x
  3. Step 3: Cross multiply
    832,409.92x = 1,148,728.72 × 450,436.70
  4. Step 4: Simplify right side
    832,409.92x = 517,429,573,832.02
  5. Step 5: Solve for x
    x = 517,429,573,832.02/832,409.92
  6. Step 6: Final answer
    x = 621,604.29

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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.