Home / 648,436.20-972,423.90-293,620.20

Finding the Fourth Proportional to 648,436.20, 972,423.90 and 293,620.20

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Solution

The fourth proportional to 648,436.20, 972,423.90 and 293,620.20 is: 440,325.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,436.20 : 972,423.90 = 293,620.20 : x
  2. Step 2: Convert to fraction form
    648,436.20/972,423.90 = 293,620.20/x
  3. Step 3: Cross multiply
    648,436.20x = 972,423.90 × 293,620.20
  4. Step 4: Simplify right side
    648,436.20x = 285,523,300,002.78
  5. Step 5: Solve for x
    x = 285,523,300,002.78/648,436.20
  6. Step 6: Final answer
    x = 440,325.97

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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.