Home / 751,767.23-1,128,613.14-645,828.95

Finding the Fourth Proportional to 751,767.23, 1,128,613.14 and 645,828.95

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Solution

The fourth proportional to 751,767.23, 1,128,613.14 and 645,828.95 is: 969,570.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,767.23 : 1,128,613.14 = 645,828.95 : x
  2. Step 2: Convert to fraction form
    751,767.23/1,128,613.14 = 645,828.95/x
  3. Step 3: Cross multiply
    751,767.23x = 1,128,613.14 × 645,828.95
  4. Step 4: Simplify right side
    751,767.23x = 728,891,041,983.94
  5. Step 5: Solve for x
    x = 728,891,041,983.94/751,767.23
  6. Step 6: Final answer
    x = 969,570.11

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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.