Home / 1,218,355.09-1,681,505.98-702,010.13

Finding the Fourth Proportional to 1,218,355.09, 1,681,505.98 and 702,010.13

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Solution

The fourth proportional to 1,218,355.09, 1,681,505.98 and 702,010.13 is: 968,875.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,355.09 : 1,681,505.98 = 702,010.13 : x
  2. Step 2: Convert to fraction form
    1,218,355.09/1,681,505.98 = 702,010.13/x
  3. Step 3: Cross multiply
    1,218,355.09x = 1,681,505.98 × 702,010.13
  4. Step 4: Simplify right side
    1,218,355.09x = 1,180,434,231,615.58
  5. Step 5: Solve for x
    x = 1,180,434,231,615.58/1,218,355.09
  6. Step 6: Final answer
    x = 968,875.36

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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.