Home / 881,770.70-1,216,938.72-499,756.46

Finding the Fourth Proportional to 881,770.70, 1,216,938.72 and 499,756.46

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Solution

The fourth proportional to 881,770.70, 1,216,938.72 and 499,756.46 is: 689,717.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,770.70 : 1,216,938.72 = 499,756.46 : x
  2. Step 2: Convert to fraction form
    881,770.70/1,216,938.72 = 499,756.46/x
  3. Step 3: Cross multiply
    881,770.70x = 1,216,938.72 × 499,756.46
  4. Step 4: Simplify right side
    881,770.70x = 608,172,986,744.13
  5. Step 5: Solve for x
    x = 608,172,986,744.13/881,770.70
  6. Step 6: Final answer
    x = 689,717.84

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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.