Home / 458,621.40-686,549.70-403,325.40

Finding the Fourth Proportional to 458,621.40, 686,549.70 and 403,325.40

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Solution

The fourth proportional to 458,621.40, 686,549.70 and 403,325.40 is: 603,772.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,621.40 : 686,549.70 = 403,325.40 : x
  2. Step 2: Convert to fraction form
    458,621.40/686,549.70 = 403,325.40/x
  3. Step 3: Cross multiply
    458,621.40x = 686,549.70 × 403,325.40
  4. Step 4: Simplify right side
    458,621.40x = 276,902,932,372.38
  5. Step 5: Solve for x
    x = 276,902,932,372.38/458,621.40
  6. Step 6: Final answer
    x = 603,772.38

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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.