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Finding the Fourth Proportional to 649,392.69, 896,446.41 and 496,437.24

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Solution

The fourth proportional to 649,392.69, 896,446.41 and 496,437.24 is: 685,300.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,392.69 : 896,446.41 = 496,437.24 : x
  2. Step 2: Convert to fraction form
    649,392.69/896,446.41 = 496,437.24/x
  3. Step 3: Cross multiply
    649,392.69x = 896,446.41 × 496,437.24
  4. Step 4: Simplify right side
    649,392.69x = 445,029,381,588.31
  5. Step 5: Solve for x
    x = 445,029,381,588.31/649,392.69
  6. Step 6: Final answer
    x = 685,300.88

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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.