Home / 991,313.38-1,486,971.15-271,661.23

Finding the Fourth Proportional to 991,313.38, 1,486,971.15 and 271,661.23

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Solution

The fourth proportional to 991,313.38, 1,486,971.15 and 271,661.23 is: 407,492.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,313.38 : 1,486,971.15 = 271,661.23 : x
  2. Step 2: Convert to fraction form
    991,313.38/1,486,971.15 = 271,661.23/x
  3. Step 3: Cross multiply
    991,313.38x = 1,486,971.15 × 271,661.23
  4. Step 4: Simplify right side
    991,313.38x = 403,952,411,583.51
  5. Step 5: Solve for x
    x = 403,952,411,583.51/991,313.38
  6. Step 6: Final answer
    x = 407,492.14

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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.