Home / 680,788.28-1,020,709.55-301,502.34

Finding the Fourth Proportional to 680,788.28, 1,020,709.55 and 301,502.34

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Solution

The fourth proportional to 680,788.28, 1,020,709.55 and 301,502.34 is: 452,044.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,788.28 : 1,020,709.55 = 301,502.34 : x
  2. Step 2: Convert to fraction form
    680,788.28/1,020,709.55 = 301,502.34/x
  3. Step 3: Cross multiply
    680,788.28x = 1,020,709.55 × 301,502.34
  4. Step 4: Simplify right side
    680,788.28x = 307,746,318,539.10
  5. Step 5: Solve for x
    x = 307,746,318,539.10/680,788.28
  6. Step 6: Final answer
    x = 452,044.09

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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.