Home / 778,195.28-1,166,318.52-417,475.28

Finding the Fourth Proportional to 778,195.28, 1,166,318.52 and 417,475.28

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Solution

The fourth proportional to 778,195.28, 1,166,318.52 and 417,475.28 is: 625,690.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,195.28 : 1,166,318.52 = 417,475.28 : x
  2. Step 2: Convert to fraction form
    778,195.28/1,166,318.52 = 417,475.28/x
  3. Step 3: Cross multiply
    778,195.28x = 1,166,318.52 × 417,475.28
  4. Step 4: Simplify right side
    778,195.28x = 486,909,150,706.19
  5. Step 5: Solve for x
    x = 486,909,150,706.19/778,195.28
  6. Step 6: Final answer
    x = 625,690.19

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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.