Home / 1,218,438.48-1,681,225.20-702,099.12

Finding the Fourth Proportional to 1,218,438.48, 1,681,225.20 and 702,099.12

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Solution

The fourth proportional to 1,218,438.48, 1,681,225.20 and 702,099.12 is: 968,770.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,438.48 : 1,681,225.20 = 702,099.12 : x
  2. Step 2: Convert to fraction form
    1,218,438.48/1,681,225.20 = 702,099.12/x
  3. Step 3: Cross multiply
    1,218,438.48x = 1,681,225.20 × 702,099.12
  4. Step 4: Simplify right side
    1,218,438.48x = 1,180,386,733,441.82
  5. Step 5: Solve for x
    x = 1,180,386,733,441.82/1,218,438.48
  6. Step 6: Final answer
    x = 968,770.07

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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.