Home / 891,441.90-1,230,273.81-509,394.42

Finding the Fourth Proportional to 891,441.90, 1,230,273.81 and 509,394.42

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Solution

The fourth proportional to 891,441.90, 1,230,273.81 and 509,394.42 is: 703,012.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,441.90 : 1,230,273.81 = 509,394.42 : x
  2. Step 2: Convert to fraction form
    891,441.90/1,230,273.81 = 509,394.42/x
  3. Step 3: Cross multiply
    891,441.90x = 1,230,273.81 × 509,394.42
  4. Step 4: Simplify right side
    891,441.90x = 626,694,613,886.14
  5. Step 5: Solve for x
    x = 626,694,613,886.14/891,441.90
  6. Step 6: Final answer
    x = 703,012.29

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.