Home / 542,981.93-749,424.09-313,576.56

Finding the Fourth Proportional to 542,981.93, 749,424.09 and 313,576.56

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Solution

The fourth proportional to 542,981.93, 749,424.09 and 313,576.56 is: 432,798.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,981.93 : 749,424.09 = 313,576.56 : x
  2. Step 2: Convert to fraction form
    542,981.93/749,424.09 = 313,576.56/x
  3. Step 3: Cross multiply
    542,981.93x = 749,424.09 × 313,576.56
  4. Step 4: Simplify right side
    542,981.93x = 235,001,828,123.33
  5. Step 5: Solve for x
    x = 235,001,828,123.33/542,981.93
  6. Step 6: Final answer
    x = 432,798.62

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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.