Home / 1,218,507.89-1,681,316.79-702,189.39

Finding the Fourth Proportional to 1,218,507.89, 1,681,316.79 and 702,189.39

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Solution

The fourth proportional to 1,218,507.89, 1,681,316.79 and 702,189.39 is: 968,892.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,507.89 : 1,681,316.79 = 702,189.39 : x
  2. Step 2: Convert to fraction form
    1,218,507.89/1,681,316.79 = 702,189.39/x
  3. Step 3: Cross multiply
    1,218,507.89x = 1,681,316.79 × 702,189.39
  4. Step 4: Simplify right side
    1,218,507.89x = 1,180,602,811,166.86
  5. Step 5: Solve for x
    x = 1,180,602,811,166.86/1,218,507.89
  6. Step 6: Final answer
    x = 968,892.22

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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.