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Finding the Fourth Proportional to 529,017.84, 730,044.42 and 287,300.46

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Solution

The fourth proportional to 529,017.84, 730,044.42 and 287,300.46 is: 396,474.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,017.84 : 730,044.42 = 287,300.46 : x
  2. Step 2: Convert to fraction form
    529,017.84/730,044.42 = 287,300.46/x
  3. Step 3: Cross multiply
    529,017.84x = 730,044.42 × 287,300.46
  4. Step 4: Simplify right side
    529,017.84x = 209,742,097,686.43
  5. Step 5: Solve for x
    x = 209,742,097,686.43/529,017.84
  6. Step 6: Final answer
    x = 396,474.53

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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.