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Finding the Fourth Proportional to 585,014.80, 877,522.20 and 285,687.40

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Solution

The fourth proportional to 585,014.80, 877,522.20 and 285,687.40 is: 428,531.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,014.80 : 877,522.20 = 285,687.40 : x
  2. Step 2: Convert to fraction form
    585,014.80/877,522.20 = 285,687.40/x
  3. Step 3: Cross multiply
    585,014.80x = 877,522.20 × 285,687.40
  4. Step 4: Simplify right side
    585,014.80x = 250,697,035,760.28
  5. Step 5: Solve for x
    x = 250,697,035,760.28/585,014.80
  6. Step 6: Final answer
    x = 428,531.10

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Similar ratio
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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.