Home / 1,440,979.47-1,988,628.57-829,225.35

Finding the Fourth Proportional to 1,440,979.47, 1,988,628.57 and 829,225.35

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Solution

The fourth proportional to 1,440,979.47, 1,988,628.57 and 829,225.35 is: 1,144,375.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,979.47 : 1,988,628.57 = 829,225.35 : x
  2. Step 2: Convert to fraction form
    1,440,979.47/1,988,628.57 = 829,225.35/x
  3. Step 3: Cross multiply
    1,440,979.47x = 1,988,628.57 × 829,225.35
  4. Step 4: Simplify right side
    1,440,979.47x = 1,649,021,221,978.25
  5. Step 5: Solve for x
    x = 1,649,021,221,978.25/1,440,979.47
  6. Step 6: Final answer
    x = 1,144,375.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.