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Finding the Fourth Proportional to 870,511.96, 1,305,572.48 and 365,643.01

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Solution

The fourth proportional to 870,511.96, 1,305,572.48 and 365,643.01 is: 548,382.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,511.96 : 1,305,572.48 = 365,643.01 : x
  2. Step 2: Convert to fraction form
    870,511.96/1,305,572.48 = 365,643.01/x
  3. Step 3: Cross multiply
    870,511.96x = 1,305,572.48 × 365,643.01
  4. Step 4: Simplify right side
    870,511.96x = 477,373,452,535.28
  5. Step 5: Solve for x
    x = 477,373,452,535.28/870,511.96
  6. Step 6: Final answer
    x = 548,382.42

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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.