Home / 648,425.20-972,407.40-293,609.20

Finding the Fourth Proportional to 648,425.20, 972,407.40 and 293,609.20

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Solution

The fourth proportional to 648,425.20, 972,407.40 and 293,609.20 is: 440,309.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,425.20 : 972,407.40 = 293,609.20 : x
  2. Step 2: Convert to fraction form
    648,425.20/972,407.40 = 293,609.20/x
  3. Step 3: Cross multiply
    648,425.20x = 972,407.40 × 293,609.20
  4. Step 4: Simplify right side
    648,425.20x = 285,507,758,788.08
  5. Step 5: Solve for x
    x = 285,507,758,788.08/648,425.20
  6. Step 6: Final answer
    x = 440,309.47

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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.