Home / 782,155.44-1,079,389.80-510,397.20

Finding the Fourth Proportional to 782,155.44, 1,079,389.80 and 510,397.20

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Solution

The fourth proportional to 782,155.44, 1,079,389.80 and 510,397.20 is: 704,358.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,155.44 : 1,079,389.80 = 510,397.20 : x
  2. Step 2: Convert to fraction form
    782,155.44/1,079,389.80 = 510,397.20/x
  3. Step 3: Cross multiply
    782,155.44x = 1,079,389.80 × 510,397.20
  4. Step 4: Simplify right side
    782,155.44x = 550,917,531,628.56
  5. Step 5: Solve for x
    x = 550,917,531,628.56/782,155.44
  6. Step 6: Final answer
    x = 704,358.12

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1.5x scale

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.