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Finding the Fourth Proportional to 586,667.20, 880,000.80 and 387,212.80

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Solution

The fourth proportional to 586,667.20, 880,000.80 and 387,212.80 is: 580,819.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,667.20 : 880,000.80 = 387,212.80 : x
  2. Step 2: Convert to fraction form
    586,667.20/880,000.80 = 387,212.80/x
  3. Step 3: Cross multiply
    586,667.20x = 880,000.80 × 387,212.80
  4. Step 4: Simplify right side
    586,667.20x = 340,747,573,770.24
  5. Step 5: Solve for x
    x = 340,747,573,770.24/586,667.20
  6. Step 6: Final answer
    x = 580,819.20

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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.