Home / 347,843.10-521,764.65-263,862.30

Finding the Fourth Proportional to 347,843.10, 521,764.65 and 263,862.30

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Solution

The fourth proportional to 347,843.10, 521,764.65 and 263,862.30 is: 395,793.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,843.10 : 521,764.65 = 263,862.30 : x
  2. Step 2: Convert to fraction form
    347,843.10/521,764.65 = 263,862.30/x
  3. Step 3: Cross multiply
    347,843.10x = 521,764.65 × 263,862.30
  4. Step 4: Simplify right side
    347,843.10x = 137,674,020,607.70
  5. Step 5: Solve for x
    x = 137,674,020,607.70/347,843.10
  6. Step 6: Final answer
    x = 395,793.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.