Home / 856,835.20-1,283,900.98-316,348.24

Finding the Fourth Proportional to 856,835.20, 1,283,900.98 and 316,348.24

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Solution

The fourth proportional to 856,835.20, 1,283,900.98 and 316,348.24 is: 474,023.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,835.20 : 1,283,900.98 = 316,348.24 : x
  2. Step 2: Convert to fraction form
    856,835.20/1,283,900.98 = 316,348.24/x
  3. Step 3: Cross multiply
    856,835.20x = 1,283,900.98 × 316,348.24
  4. Step 4: Simplify right side
    856,835.20x = 406,159,815,357.28
  5. Step 5: Solve for x
    x = 406,159,815,357.28/856,835.20
  6. Step 6: Final answer
    x = 474,023.26

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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.