Home / 691,085.40-1,036,628.10-682,228.05

Finding the Fourth Proportional to 691,085.40, 1,036,628.10 and 682,228.05

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Solution

The fourth proportional to 691,085.40, 1,036,628.10 and 682,228.05 is: 1,023,342.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,085.40 : 1,036,628.10 = 682,228.05 : x
  2. Step 2: Convert to fraction form
    691,085.40/1,036,628.10 = 682,228.05/x
  3. Step 3: Cross multiply
    691,085.40x = 1,036,628.10 × 682,228.05
  4. Step 4: Simplify right side
    691,085.40x = 707,216,767,238.21
  5. Step 5: Solve for x
    x = 707,216,767,238.21/691,085.40
  6. Step 6: Final answer
    x = 1,023,342.08

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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.