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Finding the Fourth Proportional to 542,806.08, 749,057.94 and 313,355.61

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Solution

The fourth proportional to 542,806.08, 749,057.94 and 313,355.61 is: 432,422.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,806.08 : 749,057.94 = 313,355.61 : x
  2. Step 2: Convert to fraction form
    542,806.08/749,057.94 = 313,355.61/x
  3. Step 3: Cross multiply
    542,806.08x = 749,057.94 × 313,355.61
  4. Step 4: Simplify right side
    542,806.08x = 234,721,507,714.04
  5. Step 5: Solve for x
    x = 234,721,507,714.04/542,806.08
  6. Step 6: Final answer
    x = 432,422.40

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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.