Home / 991,018.24-1,486,625.47-316,930.16

Finding the Fourth Proportional to 991,018.24, 1,486,625.47 and 316,930.16

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Solution

The fourth proportional to 991,018.24, 1,486,625.47 and 316,930.16 is: 475,426.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,018.24 : 1,486,625.47 = 316,930.16 : x
  2. Step 2: Convert to fraction form
    991,018.24/1,486,625.47 = 316,930.16/x
  3. Step 3: Cross multiply
    991,018.24x = 1,486,625.47 × 316,930.16
  4. Step 4: Simplify right side
    991,018.24x = 471,156,450,991.41
  5. Step 5: Solve for x
    x = 471,156,450,991.41/991,018.24
  6. Step 6: Final answer
    x = 475,426.62

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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.