Home / 672,784.92-1,009,204.92-313,290.72

Finding the Fourth Proportional to 672,784.92, 1,009,204.92 and 313,290.72

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Solution

The fourth proportional to 672,784.92, 1,009,204.92 and 313,290.72 is: 469,948.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,784.92 : 1,009,204.92 = 313,290.72 : x
  2. Step 2: Convert to fraction form
    672,784.92/1,009,204.92 = 313,290.72/x
  3. Step 3: Cross multiply
    672,784.92x = 1,009,204.92 × 313,290.72
  4. Step 4: Simplify right side
    672,784.92x = 316,174,536,014.34
  5. Step 5: Solve for x
    x = 316,174,536,014.34/672,784.92
  6. Step 6: Final answer
    x = 469,948.90

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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.