Home / 740,960.28-1,022,530.10-401,428.53

Finding the Fourth Proportional to 740,960.28, 1,022,530.10 and 401,428.53

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Solution

The fourth proportional to 740,960.28, 1,022,530.10 and 401,428.53 is: 553,974.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,960.28 : 1,022,530.10 = 401,428.53 : x
  2. Step 2: Convert to fraction form
    740,960.28/1,022,530.10 = 401,428.53/x
  3. Step 3: Cross multiply
    740,960.28x = 1,022,530.10 × 401,428.53
  4. Step 4: Simplify right side
    740,960.28x = 410,472,752,916.61
  5. Step 5: Solve for x
    x = 410,472,752,916.61/740,960.28
  6. Step 6: Final answer
    x = 553,974.03

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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.