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Finding the Fourth Proportional to 480,027.80, 720,041.70 and 347,835.80

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Solution

The fourth proportional to 480,027.80, 720,041.70 and 347,835.80 is: 521,753.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,027.80 : 720,041.70 = 347,835.80 : x
  2. Step 2: Convert to fraction form
    480,027.80/720,041.70 = 347,835.80/x
  3. Step 3: Cross multiply
    480,027.80x = 720,041.70 × 347,835.80
  4. Step 4: Simplify right side
    480,027.80x = 250,456,280,752.86
  5. Step 5: Solve for x
    x = 250,456,280,752.86/480,027.80
  6. Step 6: Final answer
    x = 521,753.70

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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.