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Finding the Fourth Proportional to 480,144.92, 720,669.56 and 243,657.32

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Solution

The fourth proportional to 480,144.92, 720,669.56 and 243,657.32 is: 365,715.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,144.92 : 720,669.56 = 243,657.32 : x
  2. Step 2: Convert to fraction form
    480,144.92/720,669.56 = 243,657.32/x
  3. Step 3: Cross multiply
    480,144.92x = 720,669.56 × 243,657.32
  4. Step 4: Simplify right side
    480,144.92x = 175,596,408,773.55
  5. Step 5: Solve for x
    x = 175,596,408,773.55/480,144.92
  6. Step 6: Final answer
    x = 365,715.44

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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.