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Finding the Fourth Proportional to 542,159.94, 748,197.12 and 300,419.90

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Solution

The fourth proportional to 542,159.94, 748,197.12 and 300,419.90 is: 414,588.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,159.94 : 748,197.12 = 300,419.90 : x
  2. Step 2: Convert to fraction form
    542,159.94/748,197.12 = 300,419.90/x
  3. Step 3: Cross multiply
    542,159.94x = 748,197.12 × 300,419.90
  4. Step 4: Simplify right side
    542,159.94x = 224,773,303,970.69
  5. Step 5: Solve for x
    x = 224,773,303,970.69/542,159.94
  6. Step 6: Final answer
    x = 414,588.55

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1.5x scale

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.