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Finding the Fourth Proportional to 781,802.28, 1,078,889.22 and 424,106.28

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Solution

The fourth proportional to 781,802.28, 1,078,889.22 and 424,106.28 is: 585,267.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,802.28 : 1,078,889.22 = 424,106.28 : x
  2. Step 2: Convert to fraction form
    781,802.28/1,078,889.22 = 424,106.28/x
  3. Step 3: Cross multiply
    781,802.28x = 1,078,889.22 × 424,106.28
  4. Step 4: Simplify right side
    781,802.28x = 457,563,693,626.30
  5. Step 5: Solve for x
    x = 457,563,693,626.30/781,802.28
  6. Step 6: Final answer
    x = 585,267.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.