Home / 691,128.04-1,039,854.30-410,855.08

Finding the Fourth Proportional to 691,128.04, 1,039,854.30 and 410,855.08

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Solution

The fourth proportional to 691,128.04, 1,039,854.30 and 410,855.08 is: 618,162.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,128.04 : 1,039,854.30 = 410,855.08 : x
  2. Step 2: Convert to fraction form
    691,128.04/1,039,854.30 = 410,855.08/x
  3. Step 3: Cross multiply
    691,128.04x = 1,039,854.30 × 410,855.08
  4. Step 4: Simplify right side
    691,128.04x = 427,229,421,614.84
  5. Step 5: Solve for x
    x = 427,229,421,614.84/691,128.04
  6. Step 6: Final answer
    x = 618,162.48

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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.