Home / 778,907.20-1,168,688.85-424,175.80

Finding the Fourth Proportional to 778,907.20, 1,168,688.85 and 424,175.80

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Solution

The fourth proportional to 778,907.20, 1,168,688.85 and 424,175.80 is: 636,442.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,907.20 : 1,168,688.85 = 424,175.80 : x
  2. Step 2: Convert to fraction form
    778,907.20/1,168,688.85 = 424,175.80/x
  3. Step 3: Cross multiply
    778,907.20x = 1,168,688.85 × 424,175.80
  4. Step 4: Simplify right side
    778,907.20x = 495,729,527,899.83
  5. Step 5: Solve for x
    x = 495,729,527,899.83/778,907.20
  6. Step 6: Final answer
    x = 636,442.35

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Double scale
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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.