Home / 905,119.55-1,357,658.28-455,719.76

Finding the Fourth Proportional to 905,119.55, 1,357,658.28 and 455,719.76

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Solution

The fourth proportional to 905,119.55, 1,357,658.28 and 455,719.76 is: 683,569.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,119.55 : 1,357,658.28 = 455,719.76 : x
  2. Step 2: Convert to fraction form
    905,119.55/1,357,658.28 = 455,719.76/x
  3. Step 3: Cross multiply
    905,119.55x = 1,357,658.28 × 455,719.76
  4. Step 4: Simplify right side
    905,119.55x = 618,711,698,735.32
  5. Step 5: Solve for x
    x = 618,711,698,735.32/905,119.55
  6. Step 6: Final answer
    x = 683,569.04

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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.