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Finding the Fourth Proportional to 831,877.60, 1,245,483.60 and 808,549.60

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Solution

The fourth proportional to 831,877.60, 1,245,483.60 and 808,549.60 is: 1,210,557.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,877.60 : 1,245,483.60 = 808,549.60 : x
  2. Step 2: Convert to fraction form
    831,877.60/1,245,483.60 = 808,549.60/x
  3. Step 3: Cross multiply
    831,877.60x = 1,245,483.60 × 808,549.60
  4. Step 4: Simplify right side
    831,877.60x = 1,007,035,266,586.56
  5. Step 5: Solve for x
    x = 1,007,035,266,586.56/831,877.60
  6. Step 6: Final answer
    x = 1,210,557.02

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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.