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Finding the Fourth Proportional to 914,802.80, 1,371,037.80 and 440,466.80

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Solution

The fourth proportional to 914,802.80, 1,371,037.80 and 440,466.80 is: 660,138.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,802.80 : 1,371,037.80 = 440,466.80 : x
  2. Step 2: Convert to fraction form
    914,802.80/1,371,037.80 = 440,466.80/x
  3. Step 3: Cross multiply
    914,802.80x = 1,371,037.80 × 440,466.80
  4. Step 4: Simplify right side
    914,802.80x = 603,896,632,445.04
  5. Step 5: Solve for x
    x = 603,896,632,445.04/914,802.80
  6. Step 6: Final answer
    x = 660,138.59

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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.