Home / 553,904.70-831,185.10-403,767.15

Finding the Fourth Proportional to 553,904.70, 831,185.10 and 403,767.15

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Solution

The fourth proportional to 553,904.70, 831,185.10 and 403,767.15 is: 605,889.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,904.70 : 831,185.10 = 403,767.15 : x
  2. Step 2: Convert to fraction form
    553,904.70/831,185.10 = 403,767.15/x
  3. Step 3: Cross multiply
    553,904.70x = 831,185.10 × 403,767.15
  4. Step 4: Simplify right side
    553,904.70x = 335,605,238,949.47
  5. Step 5: Solve for x
    x = 335,605,238,949.47/553,904.70
  6. Step 6: Final answer
    x = 605,889.86

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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.