Home / 981,482.18-1,354,447.64-551,765.84

Finding the Fourth Proportional to 981,482.18, 1,354,447.64 and 551,765.84

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Solution

The fourth proportional to 981,482.18, 1,354,447.64 and 551,765.84 is: 761,438.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,482.18 : 1,354,447.64 = 551,765.84 : x
  2. Step 2: Convert to fraction form
    981,482.18/1,354,447.64 = 551,765.84/x
  3. Step 3: Cross multiply
    981,482.18x = 1,354,447.64 × 551,765.84
  4. Step 4: Simplify right side
    981,482.18x = 747,337,934,427.79
  5. Step 5: Solve for x
    x = 747,337,934,427.79/981,482.18
  6. Step 6: Final answer
    x = 761,438.11

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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.