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Finding the Fourth Proportional to 2,876,144.32, 4,313,604 and 853,840

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Solution

The fourth proportional to 2,876,144.32, 4,313,604 and 853,840 is: 1,280,578.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876,144.32 : 4,313,604 = 853,840 : x
  2. Step 2: Convert to fraction form
    2,876,144.32/4,313,604 = 853,840/x
  3. Step 3: Cross multiply
    2,876,144.32x = 4,313,604 × 853,840
  4. Step 4: Simplify right side
    2,876,144.32x = 3,683,127,639,360
  5. Step 5: Solve for x
    x = 3,683,127,639,360/2,876,144.32
  6. Step 6: Final answer
    x = 1,280,578.17

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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.