Home / 489,946.60-734,919.90-157,556.20

Finding the Fourth Proportional to 489,946.60, 734,919.90 and 157,556.20

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Solution

The fourth proportional to 489,946.60, 734,919.90 and 157,556.20 is: 236,334.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,946.60 : 734,919.90 = 157,556.20 : x
  2. Step 2: Convert to fraction form
    489,946.60/734,919.90 = 157,556.20/x
  3. Step 3: Cross multiply
    489,946.60x = 734,919.90 × 157,556.20
  4. Step 4: Simplify right side
    489,946.60x = 115,791,186,748.38
  5. Step 5: Solve for x
    x = 115,791,186,748.38/489,946.60
  6. Step 6: Final answer
    x = 236,334.30

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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.