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Finding the Fourth Proportional to 360,014.80, 539,374.20 and 285,624.40

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Solution

The fourth proportional to 360,014.80, 539,374.20 and 285,624.40 is: 427,922.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,014.80 : 539,374.20 = 285,624.40 : x
  2. Step 2: Convert to fraction form
    360,014.80/539,374.20 = 285,624.40/x
  3. Step 3: Cross multiply
    360,014.80x = 539,374.20 × 285,624.40
  4. Step 4: Simplify right side
    360,014.80x = 154,058,432,250.48
  5. Step 5: Solve for x
    x = 154,058,432,250.48/360,014.80
  6. Step 6: Final answer
    x = 427,922.50

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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.