Home / 648,209.20-972,605.40-293,040.40

Finding the Fourth Proportional to 648,209.20, 972,605.40 and 293,040.40

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Solution

The fourth proportional to 648,209.20, 972,605.40 and 293,040.40 is: 439,692.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,209.20 : 972,605.40 = 293,040.40 : x
  2. Step 2: Convert to fraction form
    648,209.20/972,605.40 = 293,040.40/x
  3. Step 3: Cross multiply
    648,209.20x = 972,605.40 × 293,040.40
  4. Step 4: Simplify right side
    648,209.20x = 285,012,675,458.16
  5. Step 5: Solve for x
    x = 285,012,675,458.16/648,209.20
  6. Step 6: Final answer
    x = 439,692.43

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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.