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Finding the Fourth Proportional to 880,874.70, 1,323,280.35 and 857,255.10

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Solution

The fourth proportional to 880,874.70, 1,323,280.35 and 857,255.10 is: 1,287,798.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,874.70 : 1,323,280.35 = 857,255.10 : x
  2. Step 2: Convert to fraction form
    880,874.70/1,323,280.35 = 857,255.10/x
  3. Step 3: Cross multiply
    880,874.70x = 1,323,280.35 × 857,255.10
  4. Step 4: Simplify right side
    880,874.70x = 1,134,388,828,767.29
  5. Step 5: Solve for x
    x = 1,134,388,828,767.29/880,874.70
  6. Step 6: Final answer
    x = 1,287,798.17

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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.