Home / 778,565.70-1,168,176.60-423,834.30

Finding the Fourth Proportional to 778,565.70, 1,168,176.60 and 423,834.30

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Solution

The fourth proportional to 778,565.70, 1,168,176.60 and 423,834.30 is: 635,930.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,565.70 : 1,168,176.60 = 423,834.30 : x
  2. Step 2: Convert to fraction form
    778,565.70/1,168,176.60 = 423,834.30/x
  3. Step 3: Cross multiply
    778,565.70x = 1,168,176.60 × 423,834.30
  4. Step 4: Simplify right side
    778,565.70x = 495,113,311,537.38
  5. Step 5: Solve for x
    x = 495,113,311,537.38/778,565.70
  6. Step 6: Final answer
    x = 635,930.03

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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.