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Finding the Fourth Proportional to 662,360.90, 993,670.95 and 283,280.90

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Solution

The fourth proportional to 662,360.90, 993,670.95 and 283,280.90 is: 424,976.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,360.90 : 993,670.95 = 283,280.90 : x
  2. Step 2: Convert to fraction form
    662,360.90/993,670.95 = 283,280.90/x
  3. Step 3: Cross multiply
    662,360.90x = 993,670.95 × 283,280.90
  4. Step 4: Simplify right side
    662,360.90x = 281,488,001,019.86
  5. Step 5: Solve for x
    x = 281,488,001,019.86/662,360.90
  6. Step 6: Final answer
    x = 424,976.78

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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.