Home / 874,835.59-1,312,253.41-209,987.59

Finding the Fourth Proportional to 874,835.59, 1,312,253.41 and 209,987.59

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Solution

The fourth proportional to 874,835.59, 1,312,253.41 and 209,987.59 is: 314,981.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,835.59 : 1,312,253.41 = 209,987.59 : x
  2. Step 2: Convert to fraction form
    874,835.59/1,312,253.41 = 209,987.59/x
  3. Step 3: Cross multiply
    874,835.59x = 1,312,253.41 × 209,987.59
  4. Step 4: Simplify right side
    874,835.59x = 275,556,931,035.18
  5. Step 5: Solve for x
    x = 275,556,931,035.18/874,835.59
  6. Step 6: Final answer
    x = 314,981.39

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Double scale
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Similar ratio
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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.