Home / 1,125,978.97-1,688,619.19-406,227.10

Finding the Fourth Proportional to 1,125,978.97, 1,688,619.19 and 406,227.10

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Solution

The fourth proportional to 1,125,978.97, 1,688,619.19 and 406,227.10 is: 609,214.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,978.97 : 1,688,619.19 = 406,227.10 : x
  2. Step 2: Convert to fraction form
    1,125,978.97/1,688,619.19 = 406,227.10/x
  3. Step 3: Cross multiply
    1,125,978.97x = 1,688,619.19 × 406,227.10
  4. Step 4: Simplify right side
    1,125,978.97x = 685,962,881,801.40
  5. Step 5: Solve for x
    x = 685,962,881,801.40/1,125,978.97
  6. Step 6: Final answer
    x = 609,214.65

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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.