Home / 773,877.80-1,160,816.70-212,911.40

Finding the Fourth Proportional to 773,877.80, 1,160,816.70 and 212,911.40

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Solution

The fourth proportional to 773,877.80, 1,160,816.70 and 212,911.40 is: 319,367.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,877.80 : 1,160,816.70 = 212,911.40 : x
  2. Step 2: Convert to fraction form
    773,877.80/1,160,816.70 = 212,911.40/x
  3. Step 3: Cross multiply
    773,877.80x = 1,160,816.70 × 212,911.40
  4. Step 4: Simplify right side
    773,877.80x = 247,151,108,740.38
  5. Step 5: Solve for x
    x = 247,151,108,740.38/773,877.80
  6. Step 6: Final answer
    x = 319,367.10

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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.