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Finding the Fourth Proportional to 638,444.80, 957,229.80 and 301,646.80

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Solution

The fourth proportional to 638,444.80, 957,229.80 and 301,646.80 is: 452,263.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,444.80 : 957,229.80 = 301,646.80 : x
  2. Step 2: Convert to fraction form
    638,444.80/957,229.80 = 301,646.80/x
  3. Step 3: Cross multiply
    638,444.80x = 957,229.80 × 301,646.80
  4. Step 4: Simplify right side
    638,444.80x = 288,745,306,034.64
  5. Step 5: Solve for x
    x = 288,745,306,034.64/638,444.80
  6. Step 6: Final answer
    x = 452,263.54

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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.