Home / 779,832.80-1,169,749.20-425,538.80

Finding the Fourth Proportional to 779,832.80, 1,169,749.20 and 425,538.80

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Solution

The fourth proportional to 779,832.80, 1,169,749.20 and 425,538.80 is: 638,308.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,832.80 : 1,169,749.20 = 425,538.80 : x
  2. Step 2: Convert to fraction form
    779,832.80/1,169,749.20 = 425,538.80/x
  3. Step 3: Cross multiply
    779,832.80x = 1,169,749.20 × 425,538.80
  4. Step 4: Simplify right side
    779,832.80x = 497,773,670,868.96
  5. Step 5: Solve for x
    x = 497,773,670,868.96/779,832.80
  6. Step 6: Final answer
    x = 638,308.20

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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.