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Finding the Fourth Proportional to 872,210.08, 1,307,382 and 451,061.92

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Solution

The fourth proportional to 872,210.08, 1,307,382 and 451,061.92 is: 676,110.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,210.08 : 1,307,382 = 451,061.92 : x
  2. Step 2: Convert to fraction form
    872,210.08/1,307,382 = 451,061.92/x
  3. Step 3: Cross multiply
    872,210.08x = 1,307,382 × 451,061.92
  4. Step 4: Simplify right side
    872,210.08x = 589,710,235,093.44
  5. Step 5: Solve for x
    x = 589,710,235,093.44/872,210.08
  6. Step 6: Final answer
    x = 676,110.32

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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.