Home / 831,274.40-1,246,948.69-254,856.20

Finding the Fourth Proportional to 831,274.40, 1,246,948.69 and 254,856.20

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Solution

The fourth proportional to 831,274.40, 1,246,948.69 and 254,856.20 is: 382,295.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,274.40 : 1,246,948.69 = 254,856.20 : x
  2. Step 2: Convert to fraction form
    831,274.40/1,246,948.69 = 254,856.20/x
  3. Step 3: Cross multiply
    831,274.40x = 1,246,948.69 × 254,856.20
  4. Step 4: Simplify right side
    831,274.40x = 317,792,608,482.89
  5. Step 5: Solve for x
    x = 317,792,608,482.89/831,274.40
  6. Step 6: Final answer
    x = 382,295.68

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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.