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Finding the Fourth Proportional to 574,352.40, 861,701.40 and 308,240.40

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Solution

The fourth proportional to 574,352.40, 861,701.40 and 308,240.40 is: 462,453.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,352.40 : 861,701.40 = 308,240.40 : x
  2. Step 2: Convert to fraction form
    574,352.40/861,701.40 = 308,240.40/x
  3. Step 3: Cross multiply
    574,352.40x = 861,701.40 × 308,240.40
  4. Step 4: Simplify right side
    574,352.40x = 265,611,184,216.56
  5. Step 5: Solve for x
    x = 265,611,184,216.56/574,352.40
  6. Step 6: Final answer
    x = 462,453.34

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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.