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Finding the Fourth Proportional to 542,807.34, 749,108.04 and 313,406.58

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Solution

The fourth proportional to 542,807.34, 749,108.04 and 313,406.58 is: 432,520.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,807.34 : 749,108.04 = 313,406.58 : x
  2. Step 2: Convert to fraction form
    542,807.34/749,108.04 = 313,406.58/x
  3. Step 3: Cross multiply
    542,807.34x = 749,108.04 × 313,406.58
  4. Step 4: Simplify right side
    542,807.34x = 234,775,388,866.90
  5. Step 5: Solve for x
    x = 234,775,388,866.90/542,807.34
  6. Step 6: Final answer
    x = 432,520.66

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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.