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Finding the Fourth Proportional to 567,483.84, 783,097.20 and 312,785.28

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Solution

The fourth proportional to 567,483.84, 783,097.20 and 312,785.28 is: 431,626.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,483.84 : 783,097.20 = 312,785.28 : x
  2. Step 2: Convert to fraction form
    567,483.84/783,097.20 = 312,785.28/x
  3. Step 3: Cross multiply
    567,483.84x = 783,097.20 × 312,785.28
  4. Step 4: Simplify right side
    567,483.84x = 244,941,276,969.22
  5. Step 5: Solve for x
    x = 244,941,276,969.22/567,483.84
  6. Step 6: Final answer
    x = 431,626.88

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Why These Related Problems?

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