Home / 1,190,400.49-1,642,497.10-707,128.57

Finding the Fourth Proportional to 1,190,400.49, 1,642,497.10 and 707,128.57

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Solution

The fourth proportional to 1,190,400.49, 1,642,497.10 and 707,128.57 is: 975,685.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,400.49 : 1,642,497.10 = 707,128.57 : x
  2. Step 2: Convert to fraction form
    1,190,400.49/1,642,497.10 = 707,128.57/x
  3. Step 3: Cross multiply
    1,190,400.49x = 1,642,497.10 × 707,128.57
  4. Step 4: Simplify right side
    1,190,400.49x = 1,161,456,625,552.15
  5. Step 5: Solve for x
    x = 1,161,456,625,552.15/1,190,400.49
  6. Step 6: Final answer
    x = 975,685.61

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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.