Home / 907,764.30-1,361,646.45-309,401.10

Finding the Fourth Proportional to 907,764.30, 1,361,646.45 and 309,401.10

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Solution

The fourth proportional to 907,764.30, 1,361,646.45 and 309,401.10 is: 464,101.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,764.30 : 1,361,646.45 = 309,401.10 : x
  2. Step 2: Convert to fraction form
    907,764.30/1,361,646.45 = 309,401.10/x
  3. Step 3: Cross multiply
    907,764.30x = 1,361,646.45 × 309,401.10
  4. Step 4: Simplify right side
    907,764.30x = 421,294,909,441.10
  5. Step 5: Solve for x
    x = 421,294,909,441.10/907,764.30
  6. Step 6: Final answer
    x = 464,101.65

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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.