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Finding the Fourth Proportional to 974,800.60, 1,462,200.90 and 310,019.80

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Solution

The fourth proportional to 974,800.60, 1,462,200.90 and 310,019.80 is: 465,029.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    974,800.60 : 1,462,200.90 = 310,019.80 : x
  2. Step 2: Convert to fraction form
    974,800.60/1,462,200.90 = 310,019.80/x
  3. Step 3: Cross multiply
    974,800.60x = 1,462,200.90 × 310,019.80
  4. Step 4: Simplify right side
    974,800.60x = 453,311,230,577.82
  5. Step 5: Solve for x
    x = 453,311,230,577.82/974,800.60
  6. Step 6: Final answer
    x = 465,029.70

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Similar ratio
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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.