Home / 542,939.91-749,292.50-313,506.87

Finding the Fourth Proportional to 542,939.91, 749,292.50 and 313,506.87

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Solution

The fourth proportional to 542,939.91, 749,292.50 and 313,506.87 is: 432,659.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,939.91 : 749,292.50 = 313,506.87 : x
  2. Step 2: Convert to fraction form
    542,939.91/749,292.50 = 313,506.87/x
  3. Step 3: Cross multiply
    542,939.91x = 749,292.50 × 313,506.87
  4. Step 4: Simplify right side
    542,939.91x = 234,908,341,075.48
  5. Step 5: Solve for x
    x = 234,908,341,075.48/542,939.91
  6. Step 6: Final answer
    x = 432,659.93

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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.