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Finding the Fourth Proportional to 649,750.69, 896,626.28 and 359,364.88

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Solution

The fourth proportional to 649,750.69, 896,626.28 and 359,364.88 is: 495,907.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,750.69 : 896,626.28 = 359,364.88 : x
  2. Step 2: Convert to fraction form
    649,750.69/896,626.28 = 359,364.88/x
  3. Step 3: Cross multiply
    649,750.69x = 896,626.28 × 359,364.88
  4. Step 4: Simplify right side
    649,750.69x = 322,215,994,173.89
  5. Step 5: Solve for x
    x = 322,215,994,173.89/649,750.69
  6. Step 6: Final answer
    x = 495,907.12

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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.