Home / 645,779.06-968,658.85-290,542.22

Finding the Fourth Proportional to 645,779.06, 968,658.85 and 290,542.22

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Solution

The fourth proportional to 645,779.06, 968,658.85 and 290,542.22 is: 435,808.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,779.06 : 968,658.85 = 290,542.22 : x
  2. Step 2: Convert to fraction form
    645,779.06/968,658.85 = 290,542.22/x
  3. Step 3: Cross multiply
    645,779.06x = 968,658.85 × 290,542.22
  4. Step 4: Simplify right side
    645,779.06x = 281,436,292,701.65
  5. Step 5: Solve for x
    x = 281,436,292,701.65/645,779.06
  6. Step 6: Final answer
    x = 435,808.95

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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.