Home / 661,316.16-992,315.61-282,135.12

Finding the Fourth Proportional to 661,316.16, 992,315.61 and 282,135.12

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Solution

The fourth proportional to 661,316.16, 992,315.61 and 282,135.12 is: 423,348.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,316.16 : 992,315.61 = 282,135.12 : x
  2. Step 2: Convert to fraction form
    661,316.16/992,315.61 = 282,135.12/x
  3. Step 3: Cross multiply
    661,316.16x = 992,315.61 × 282,135.12
  4. Step 4: Simplify right side
    661,316.16x = 279,967,083,705.22
  5. Step 5: Solve for x
    x = 279,967,083,705.22/661,316.16
  6. Step 6: Final answer
    x = 423,348.32

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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.