Home / 721,362.90-1,082,421.54-295,215.06

Finding the Fourth Proportional to 721,362.90, 1,082,421.54 and 295,215.06

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Solution

The fourth proportional to 721,362.90, 1,082,421.54 and 295,215.06 is: 442,976.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,362.90 : 1,082,421.54 = 295,215.06 : x
  2. Step 2: Convert to fraction form
    721,362.90/1,082,421.54 = 295,215.06/x
  3. Step 3: Cross multiply
    721,362.90x = 1,082,421.54 × 295,215.06
  4. Step 4: Simplify right side
    721,362.90x = 319,547,139,876.39
  5. Step 5: Solve for x
    x = 319,547,139,876.39/721,362.90
  6. Step 6: Final answer
    x = 442,976.95

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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.