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Finding the Fourth Proportional to 522,051.20, 782,420.70 and 255,237.20

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Solution

The fourth proportional to 522,051.20, 782,420.70 and 255,237.20 is: 382,535.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,051.20 : 782,420.70 = 255,237.20 : x
  2. Step 2: Convert to fraction form
    522,051.20/782,420.70 = 255,237.20/x
  3. Step 3: Cross multiply
    522,051.20x = 782,420.70 × 255,237.20
  4. Step 4: Simplify right side
    522,051.20x = 199,702,868,690.04
  5. Step 5: Solve for x
    x = 199,702,868,690.04/522,051.20
  6. Step 6: Final answer
    x = 382,535.02

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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.