Home / 918,262.80-1,377,394.20-815,911.20

Finding the Fourth Proportional to 918,262.80, 1,377,394.20 and 815,911.20

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Solution

The fourth proportional to 918,262.80, 1,377,394.20 and 815,911.20 is: 1,223,866.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,262.80 : 1,377,394.20 = 815,911.20 : x
  2. Step 2: Convert to fraction form
    918,262.80/1,377,394.20 = 815,911.20/x
  3. Step 3: Cross multiply
    918,262.80x = 1,377,394.20 × 815,911.20
  4. Step 4: Simplify right side
    918,262.80x = 1,123,831,354,595.04
  5. Step 5: Solve for x
    x = 1,123,831,354,595.04/918,262.80
  6. Step 6: Final answer
    x = 1,223,866.80

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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.