Home / 1,431,030.29-1,974,823.28-786,436.64

Finding the Fourth Proportional to 1,431,030.29, 1,974,823.28 and 786,436.64

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Solution

The fourth proportional to 1,431,030.29, 1,974,823.28 and 786,436.64 is: 1,085,283.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,030.29 : 1,974,823.28 = 786,436.64 : x
  2. Step 2: Convert to fraction form
    1,431,030.29/1,974,823.28 = 786,436.64/x
  3. Step 3: Cross multiply
    1,431,030.29x = 1,974,823.28 × 786,436.64
  4. Step 4: Simplify right side
    1,431,030.29x = 1,553,073,380,984.80
  5. Step 5: Solve for x
    x = 1,553,073,380,984.80/1,431,030.29
  6. Step 6: Final answer
    x = 1,085,283.37

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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.