Home / 1,298,496.74-1,947,954.39-399,938.18

Finding the Fourth Proportional to 1,298,496.74, 1,947,954.39 and 399,938.18

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Solution

The fourth proportional to 1,298,496.74, 1,947,954.39 and 399,938.18 is: 599,971.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,496.74 : 1,947,954.39 = 399,938.18 : x
  2. Step 2: Convert to fraction form
    1,298,496.74/1,947,954.39 = 399,938.18/x
  3. Step 3: Cross multiply
    1,298,496.74x = 1,947,954.39 × 399,938.18
  4. Step 4: Simplify right side
    1,298,496.74x = 779,061,333,459.61
  5. Step 5: Solve for x
    x = 779,061,333,459.61/1,298,496.74
  6. Step 6: Final answer
    x = 599,971.73

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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.