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Finding the Fourth Proportional to 542,711.16, 749,312.58 and 339,072.36

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Solution

The fourth proportional to 542,711.16, 749,312.58 and 339,072.36 is: 468,151.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,711.16 : 749,312.58 = 339,072.36 : x
  2. Step 2: Convert to fraction form
    542,711.16/749,312.58 = 339,072.36/x
  3. Step 3: Cross multiply
    542,711.16x = 749,312.58 × 339,072.36
  4. Step 4: Simplify right side
    542,711.16x = 254,071,184,878.29
  5. Step 5: Solve for x
    x = 254,071,184,878.29/542,711.16
  6. Step 6: Final answer
    x = 468,151.76

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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.