Home / 874,835.53-1,312,253.32-209,987.53

Finding the Fourth Proportional to 874,835.53, 1,312,253.32 and 209,987.53

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Solution

The fourth proportional to 874,835.53, 1,312,253.32 and 209,987.53 is: 314,981.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,835.53 : 1,312,253.32 = 209,987.53 : x
  2. Step 2: Convert to fraction form
    874,835.53/1,312,253.32 = 209,987.53/x
  3. Step 3: Cross multiply
    874,835.53x = 1,312,253.32 × 209,987.53
  4. Step 4: Simplify right side
    874,835.53x = 275,556,835,631.80
  5. Step 5: Solve for x
    x = 275,556,835,631.80/874,835.53
  6. Step 6: Final answer
    x = 314,981.30

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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.