Home / 630,422.20-945,633.30-314,927.80

Finding the Fourth Proportional to 630,422.20, 945,633.30 and 314,927.80

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Solution

The fourth proportional to 630,422.20, 945,633.30 and 314,927.80 is: 472,391.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,422.20 : 945,633.30 = 314,927.80 : x
  2. Step 2: Convert to fraction form
    630,422.20/945,633.30 = 314,927.80/x
  3. Step 3: Cross multiply
    630,422.20x = 945,633.30 × 314,927.80
  4. Step 4: Simplify right side
    630,422.20x = 297,806,214,775.74
  5. Step 5: Solve for x
    x = 297,806,214,775.74/630,422.20
  6. Step 6: Final answer
    x = 472,391.70

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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.