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Finding the Fourth Proportional to 703,152.85, 970,350.97 and 380,862.95

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Solution

The fourth proportional to 703,152.85, 970,350.97 and 380,862.95 is: 525,590.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,152.85 : 970,350.97 = 380,862.95 : x
  2. Step 2: Convert to fraction form
    703,152.85/970,350.97 = 380,862.95/x
  3. Step 3: Cross multiply
    703,152.85x = 970,350.97 × 380,862.95
  4. Step 4: Simplify right side
    703,152.85x = 369,570,732,107.35
  5. Step 5: Solve for x
    x = 369,570,732,107.35/703,152.85
  6. Step 6: Final answer
    x = 525,590.89

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.