Home / 831,063.78-1,146,878.19-468,487.80

Finding the Fourth Proportional to 831,063.78, 1,146,878.19 and 468,487.80

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Solution

The fourth proportional to 831,063.78, 1,146,878.19 and 468,487.80 is: 646,518.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,063.78 : 1,146,878.19 = 468,487.80 : x
  2. Step 2: Convert to fraction form
    831,063.78/1,146,878.19 = 468,487.80/x
  3. Step 3: Cross multiply
    831,063.78x = 1,146,878.19 × 468,487.80
  4. Step 4: Simplify right side
    831,063.78x = 537,298,440,101.08
  5. Step 5: Solve for x
    x = 537,298,440,101.08/831,063.78
  6. Step 6: Final answer
    x = 646,518.90

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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.