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Finding the Fourth Proportional to 520,099.60, 779,611.80 and 282,941.20

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Solution

The fourth proportional to 520,099.60, 779,611.80 and 282,941.20 is: 424,119.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,099.60 : 779,611.80 = 282,941.20 : x
  2. Step 2: Convert to fraction form
    520,099.60/779,611.80 = 282,941.20/x
  3. Step 3: Cross multiply
    520,099.60x = 779,611.80 × 282,941.20
  4. Step 4: Simplify right side
    520,099.60x = 220,584,298,226.16
  5. Step 5: Solve for x
    x = 220,584,298,226.16/520,099.60
  6. Step 6: Final answer
    x = 424,119.34

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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.