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Finding the Fourth Proportional to 713,159.11, 984,114.96 and 390,846.34

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Solution

The fourth proportional to 713,159.11, 984,114.96 and 390,846.34 is: 539,343.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,159.11 : 984,114.96 = 390,846.34 : x
  2. Step 2: Convert to fraction form
    713,159.11/984,114.96 = 390,846.34/x
  3. Step 3: Cross multiply
    713,159.11x = 984,114.96 × 390,846.34
  4. Step 4: Simplify right side
    713,159.11x = 384,637,730,255.25
  5. Step 5: Solve for x
    x = 384,637,730,255.25/713,159.11
  6. Step 6: Final answer
    x = 539,343.50

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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.