Home / 1,215,885.78-1,677,870.18-671,993.46

Finding the Fourth Proportional to 1,215,885.78, 1,677,870.18 and 671,993.46

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Solution

The fourth proportional to 1,215,885.78, 1,677,870.18 and 671,993.46 is: 927,322.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,885.78 : 1,677,870.18 = 671,993.46 : x
  2. Step 2: Convert to fraction form
    1,215,885.78/1,677,870.18 = 671,993.46/x
  3. Step 3: Cross multiply
    1,215,885.78x = 1,677,870.18 × 671,993.46
  4. Step 4: Simplify right side
    1,215,885.78x = 1,127,517,787,689.02
  5. Step 5: Solve for x
    x = 1,127,517,787,689.02/1,215,885.78
  6. Step 6: Final answer
    x = 927,322.13

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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.