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Finding the Fourth Proportional to 526,362.80, 789,025.80 and 260,164.40

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Solution

The fourth proportional to 526,362.80, 789,025.80 and 260,164.40 is: 389,990.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,362.80 : 789,025.80 = 260,164.40 : x
  2. Step 2: Convert to fraction form
    526,362.80/789,025.80 = 260,164.40/x
  3. Step 3: Cross multiply
    526,362.80x = 789,025.80 × 260,164.40
  4. Step 4: Simplify right side
    526,362.80x = 205,276,423,841.52
  5. Step 5: Solve for x
    x = 205,276,423,841.52/526,362.80
  6. Step 6: Final answer
    x = 389,990.37

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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.