Home / 1,432,222.47-1,976,427.54-787,642.64

Finding the Fourth Proportional to 1,432,222.47, 1,976,427.54 and 787,642.64

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Solution

The fourth proportional to 1,432,222.47, 1,976,427.54 and 787,642.64 is: 1,086,925.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,222.47 : 1,976,427.54 = 787,642.64 : x
  2. Step 2: Convert to fraction form
    1,432,222.47/1,976,427.54 = 787,642.64/x
  3. Step 3: Cross multiply
    1,432,222.47x = 1,976,427.54 × 787,642.64
  4. Step 4: Simplify right side
    1,432,222.47x = 1,556,718,595,492.17
  5. Step 5: Solve for x
    x = 1,556,718,595,492.17/1,432,222.47
  6. Step 6: Final answer
    x = 1,086,925.13

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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.