Home / 672,775.20-1,009,211.40-223,808.40

Finding the Fourth Proportional to 672,775.20, 1,009,211.40 and 223,808.40

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Solution

The fourth proportional to 672,775.20, 1,009,211.40 and 223,808.40 is: 335,728.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,775.20 : 1,009,211.40 = 223,808.40 : x
  2. Step 2: Convert to fraction form
    672,775.20/1,009,211.40 = 223,808.40/x
  3. Step 3: Cross multiply
    672,775.20x = 1,009,211.40 × 223,808.40
  4. Step 4: Simplify right side
    672,775.20x = 225,869,988,695.76
  5. Step 5: Solve for x
    x = 225,869,988,695.76/672,775.20
  6. Step 6: Final answer
    x = 335,728.77

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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.