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Finding the Fourth Proportional to 542,329.17, 748,450.28 and 300,621.93

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Solution

The fourth proportional to 542,329.17, 748,450.28 and 300,621.93 is: 414,878.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,329.17 : 748,450.28 = 300,621.93 : x
  2. Step 2: Convert to fraction form
    542,329.17/748,450.28 = 300,621.93/x
  3. Step 3: Cross multiply
    542,329.17x = 748,450.28 × 300,621.93
  4. Step 4: Simplify right side
    542,329.17x = 225,000,564,308.41
  5. Step 5: Solve for x
    x = 225,000,564,308.41/542,329.17
  6. Step 6: Final answer
    x = 414,878.23

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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.