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Finding the Fourth Proportional to 536,407.75, 740,250.54 and 291,397.06

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Solution

The fourth proportional to 536,407.75, 740,250.54 and 291,397.06 is: 402,132.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,407.75 : 740,250.54 = 291,397.06 : x
  2. Step 2: Convert to fraction form
    536,407.75/740,250.54 = 291,397.06/x
  3. Step 3: Cross multiply
    536,407.75x = 740,250.54 × 291,397.06
  4. Step 4: Simplify right side
    536,407.75x = 215,706,831,019.41
  5. Step 5: Solve for x
    x = 215,706,831,019.41/536,407.75
  6. Step 6: Final answer
    x = 402,132.20

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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.