Home / 989,284.12-1,484,160.10-787,642.68

Finding the Fourth Proportional to 989,284.12, 1,484,160.10 and 787,642.68

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Solution

The fourth proportional to 989,284.12, 1,484,160.10 and 787,642.68 is: 1,181,650.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,284.12 : 1,484,160.10 = 787,642.68 : x
  2. Step 2: Convert to fraction form
    989,284.12/1,484,160.10 = 787,642.68/x
  3. Step 3: Cross multiply
    989,284.12x = 1,484,160.10 × 787,642.68
  4. Step 4: Simplify right side
    989,284.12x = 1,168,987,838,713.07
  5. Step 5: Solve for x
    x = 1,168,987,838,713.07/989,284.12
  6. Step 6: Final answer
    x = 1,181,650.26

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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.