Home / 1,779,612.72-2,669,679.36-517,276.32

Finding the Fourth Proportional to 1,779,612.72, 2,669,679.36 and 517,276.32

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Solution

The fourth proportional to 1,779,612.72, 2,669,679.36 and 517,276.32 is: 775,990.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779,612.72 : 2,669,679.36 = 517,276.32 : x
  2. Step 2: Convert to fraction form
    1,779,612.72/2,669,679.36 = 517,276.32/x
  3. Step 3: Cross multiply
    1,779,612.72x = 2,669,679.36 × 517,276.32
  4. Step 4: Simplify right side
    1,779,612.72x = 1,380,961,914,920.76
  5. Step 5: Solve for x
    x = 1,380,961,914,920.76/1,779,612.72
  6. Step 6: Final answer
    x = 775,990.14

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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.