Home / 638,848.20-957,657.90-496,614.60

Finding the Fourth Proportional to 638,848.20, 957,657.90 and 496,614.60

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Solution

The fourth proportional to 638,848.20, 957,657.90 and 496,614.60 is: 744,444.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,848.20 : 957,657.90 = 496,614.60 : x
  2. Step 2: Convert to fraction form
    638,848.20/957,657.90 = 496,614.60/x
  3. Step 3: Cross multiply
    638,848.20x = 957,657.90 × 496,614.60
  4. Step 4: Simplify right side
    638,848.20x = 475,586,894,945.34
  5. Step 5: Solve for x
    x = 475,586,894,945.34/638,848.20
  6. Step 6: Final answer
    x = 744,444.29

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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.