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Finding the Fourth Proportional to 542,457.12, 748,521.60 and 300,737.46

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Solution

The fourth proportional to 542,457.12, 748,521.60 and 300,737.46 is: 414,979.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,457.12 : 748,521.60 = 300,737.46 : x
  2. Step 2: Convert to fraction form
    542,457.12/748,521.60 = 300,737.46/x
  3. Step 3: Cross multiply
    542,457.12x = 748,521.60 × 300,737.46
  4. Step 4: Simplify right side
    542,457.12x = 225,108,484,739.14
  5. Step 5: Solve for x
    x = 225,108,484,739.14/542,457.12
  6. Step 6: Final answer
    x = 414,979.32

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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.