Home / 478,779.18-660,719.70-263,926.93

Finding the Fourth Proportional to 478,779.18, 660,719.70 and 263,926.93

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Solution

The fourth proportional to 478,779.18, 660,719.70 and 263,926.93 is: 364,221.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,779.18 : 660,719.70 = 263,926.93 : x
  2. Step 2: Convert to fraction form
    478,779.18/660,719.70 = 263,926.93/x
  3. Step 3: Cross multiply
    478,779.18x = 660,719.70 × 263,926.93
  4. Step 4: Simplify right side
    478,779.18x = 174,381,722,343.40
  5. Step 5: Solve for x
    x = 174,381,722,343.40/478,779.18
  6. Step 6: Final answer
    x = 364,221.61

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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.