Home / 2,851,254.48-4,276,479.78-721,207.20

Finding the Fourth Proportional to 2,851,254.48, 4,276,479.78 and 721,207.20

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Solution

The fourth proportional to 2,851,254.48, 4,276,479.78 and 721,207.20 is: 1,081,709.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851,254.48 : 4,276,479.78 = 721,207.20 : x
  2. Step 2: Convert to fraction form
    2,851,254.48/4,276,479.78 = 721,207.20/x
  3. Step 3: Cross multiply
    2,851,254.48x = 4,276,479.78 × 721,207.20
  4. Step 4: Simplify right side
    2,851,254.48x = 3,084,228,007,990.42
  5. Step 5: Solve for x
    x = 3,084,228,007,990.42/2,851,254.48
  6. Step 6: Final answer
    x = 1,081,709.13

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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.