Home / 648,445.20-972,437.40-293,629.20

Finding the Fourth Proportional to 648,445.20, 972,437.40 and 293,629.20

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Solution

The fourth proportional to 648,445.20, 972,437.40 and 293,629.20 is: 440,339.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,445.20 : 972,437.40 = 293,629.20 : x
  2. Step 2: Convert to fraction form
    648,445.20/972,437.40 = 293,629.20/x
  3. Step 3: Cross multiply
    648,445.20x = 972,437.40 × 293,629.20
  4. Step 4: Simplify right side
    648,445.20x = 285,536,015,812.08
  5. Step 5: Solve for x
    x = 285,536,015,812.08/648,445.20
  6. Step 6: Final answer
    x = 440,339.47

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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.