Home / 874,830.75-1,312,246.14-209,982.75

Finding the Fourth Proportional to 874,830.75, 1,312,246.14 and 209,982.75

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Solution

The fourth proportional to 874,830.75, 1,312,246.14 and 209,982.75 is: 314,974.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,830.75 : 1,312,246.14 = 209,982.75 : x
  2. Step 2: Convert to fraction form
    874,830.75/1,312,246.14 = 209,982.75/x
  3. Step 3: Cross multiply
    874,830.75x = 1,312,246.14 × 209,982.75
  4. Step 4: Simplify right side
    874,830.75x = 275,549,053,941.52
  5. Step 5: Solve for x
    x = 275,549,053,941.52/874,830.75
  6. Step 6: Final answer
    x = 314,974.13

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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.