Home / 456,350.02-683,123.75-287,077.78

Finding the Fourth Proportional to 456,350.02, 683,123.75 and 287,077.78

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Solution

The fourth proportional to 456,350.02, 683,123.75 and 287,077.78 is: 429,735.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,350.02 : 683,123.75 = 287,077.78 : x
  2. Step 2: Convert to fraction form
    456,350.02/683,123.75 = 287,077.78/x
  3. Step 3: Cross multiply
    456,350.02x = 683,123.75 × 287,077.78
  4. Step 4: Simplify right side
    456,350.02x = 196,109,646,472.08
  5. Step 5: Solve for x
    x = 196,109,646,472.08/456,350.02
  6. Step 6: Final answer
    x = 429,735.16

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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.