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Finding the Fourth Proportional to 498,438.70, 747,767.40 and 245,840.20

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Solution

The fourth proportional to 498,438.70, 747,767.40 and 245,840.20 is: 368,814.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,438.70 : 747,767.40 = 245,840.20 : x
  2. Step 2: Convert to fraction form
    498,438.70/747,767.40 = 245,840.20/x
  3. Step 3: Cross multiply
    498,438.70x = 747,767.40 × 245,840.20
  4. Step 4: Simplify right side
    498,438.70x = 183,831,287,169.48
  5. Step 5: Solve for x
    x = 183,831,287,169.48/498,438.70
  6. Step 6: Final answer
    x = 368,814.23

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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.