Home / 1,298,013.53-1,947,204.63-399,530.07

Finding the Fourth Proportional to 1,298,013.53, 1,947,204.63 and 399,530.07

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Solution

The fourth proportional to 1,298,013.53, 1,947,204.63 and 399,530.07 is: 599,351.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,013.53 : 1,947,204.63 = 399,530.07 : x
  2. Step 2: Convert to fraction form
    1,298,013.53/1,947,204.63 = 399,530.07/x
  3. Step 3: Cross multiply
    1,298,013.53x = 1,947,204.63 × 399,530.07
  4. Step 4: Simplify right side
    1,298,013.53x = 777,966,802,128.22
  5. Step 5: Solve for x
    x = 777,966,802,128.22/1,298,013.53
  6. Step 6: Final answer
    x = 599,351.85

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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.