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Finding the Fourth Proportional to 360,005.80, 539,360.70 and 285,615.40

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Solution

The fourth proportional to 360,005.80, 539,360.70 and 285,615.40 is: 427,909.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,005.80 : 539,360.70 = 285,615.40 : x
  2. Step 2: Convert to fraction form
    360,005.80/539,360.70 = 285,615.40/x
  3. Step 3: Cross multiply
    360,005.80x = 539,360.70 × 285,615.40
  4. Step 4: Simplify right side
    360,005.80x = 154,049,722,074.78
  5. Step 5: Solve for x
    x = 154,049,722,074.78/360,005.80
  6. Step 6: Final answer
    x = 427,909.00

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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.