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Finding the Fourth Proportional to 542,800.36, 748,574.22 and 338,870.18

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Solution

The fourth proportional to 542,800.36, 748,574.22 and 338,870.18 is: 467,334.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,800.36 : 748,574.22 = 338,870.18 : x
  2. Step 2: Convert to fraction form
    542,800.36/748,574.22 = 338,870.18/x
  3. Step 3: Cross multiply
    542,800.36x = 748,574.22 × 338,870.18
  4. Step 4: Simplify right side
    542,800.36x = 253,669,480,674.76
  5. Step 5: Solve for x
    x = 253,669,480,674.76/542,800.36
  6. Step 6: Final answer
    x = 467,334.77

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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.