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Finding the Fourth Proportional to 480,002.60, 720,003.90 and 355,586.60

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Solution

The fourth proportional to 480,002.60, 720,003.90 and 355,586.60 is: 533,379.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,002.60 : 720,003.90 = 355,586.60 : x
  2. Step 2: Convert to fraction form
    480,002.60/720,003.90 = 355,586.60/x
  3. Step 3: Cross multiply
    480,002.60x = 720,003.90 × 355,586.60
  4. Step 4: Simplify right side
    480,002.60x = 256,023,738,787.74
  5. Step 5: Solve for x
    x = 256,023,738,787.74/480,002.60
  6. Step 6: Final answer
    x = 533,379.90

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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.