Home / 1,071,820.13-1,479,057.45-636,256.10

Finding the Fourth Proportional to 1,071,820.13, 1,479,057.45 and 636,256.10

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Solution

The fourth proportional to 1,071,820.13, 1,479,057.45 and 636,256.10 is: 878,001.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,820.13 : 1,479,057.45 = 636,256.10 : x
  2. Step 2: Convert to fraction form
    1,071,820.13/1,479,057.45 = 636,256.10/x
  3. Step 3: Cross multiply
    1,071,820.13x = 1,479,057.45 × 636,256.10
  4. Step 4: Simplify right side
    1,071,820.13x = 941,059,317,417.66
  5. Step 5: Solve for x
    x = 941,059,317,417.66/1,071,820.13
  6. Step 6: Final answer
    x = 878,001.16

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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.