Home / 1,142,561.22-1,711,971.90-693,419.76

Finding the Fourth Proportional to 1,142,561.22, 1,711,971.90 and 693,419.76

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Solution

The fourth proportional to 1,142,561.22, 1,711,971.90 and 693,419.76 is: 1,038,994.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,561.22 : 1,711,971.90 = 693,419.76 : x
  2. Step 2: Convert to fraction form
    1,142,561.22/1,711,971.90 = 693,419.76/x
  3. Step 3: Cross multiply
    1,142,561.22x = 1,711,971.90 × 693,419.76
  4. Step 4: Simplify right side
    1,142,561.22x = 1,187,115,144,024.74
  5. Step 5: Solve for x
    x = 1,187,115,144,024.74/1,142,561.22
  6. Step 6: Final answer
    x = 1,038,994.78

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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.