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Finding the Fourth Proportional to 542,302.02, 748,421.60 and 300,660.39

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Solution

The fourth proportional to 542,302.02, 748,421.60 and 300,660.39 is: 414,936.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,302.02 : 748,421.60 = 300,660.39 : x
  2. Step 2: Convert to fraction form
    542,302.02/748,421.60 = 300,660.39/x
  3. Step 3: Cross multiply
    542,302.02x = 748,421.60 × 300,660.39
  4. Step 4: Simplify right side
    542,302.02x = 225,020,728,637.12
  5. Step 5: Solve for x
    x = 225,020,728,637.12/542,302.02
  6. Step 6: Final answer
    x = 414,936.18

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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.