Home / 648,445.70-972,438.15-293,629.70

Finding the Fourth Proportional to 648,445.70, 972,438.15 and 293,629.70

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Solution

The fourth proportional to 648,445.70, 972,438.15 and 293,629.70 is: 440,340.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,445.70 : 972,438.15 = 293,629.70 : x
  2. Step 2: Convert to fraction form
    648,445.70/972,438.15 = 293,629.70/x
  3. Step 3: Cross multiply
    648,445.70x = 972,438.15 × 293,629.70
  4. Step 4: Simplify right side
    648,445.70x = 285,536,722,253.06
  5. Step 5: Solve for x
    x = 285,536,722,253.06/648,445.70
  6. Step 6: Final answer
    x = 440,340.22

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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.