Home / 876,817.20-1,315,357.20-371,377.20

Finding the Fourth Proportional to 876,817.20, 1,315,357.20 and 371,377.20

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Solution

The fourth proportional to 876,817.20, 1,315,357.20 and 371,377.20 is: 557,121.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,817.20 : 1,315,357.20 = 371,377.20 : x
  2. Step 2: Convert to fraction form
    876,817.20/1,315,357.20 = 371,377.20/x
  3. Step 3: Cross multiply
    876,817.20x = 1,315,357.20 × 371,377.20
  4. Step 4: Simplify right side
    876,817.20x = 488,493,673,935.84
  5. Step 5: Solve for x
    x = 488,493,673,935.84/876,817.20
  6. Step 6: Final answer
    x = 557,121.45

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1.5x scale

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.