Home / 1,312,266.78-1,810,928.10-708,654.78

Finding the Fourth Proportional to 1,312,266.78, 1,810,928.10 and 708,654.78

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Solution

The fourth proportional to 1,312,266.78, 1,810,928.10 and 708,654.78 is: 977,943.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,266.78 : 1,810,928.10 = 708,654.78 : x
  2. Step 2: Convert to fraction form
    1,312,266.78/1,810,928.10 = 708,654.78/x
  3. Step 3: Cross multiply
    1,312,266.78x = 1,810,928.10 × 708,654.78
  4. Step 4: Simplify right side
    1,312,266.78x = 1,283,322,854,301.32
  5. Step 5: Solve for x
    x = 1,283,322,854,301.32/1,312,266.78
  6. Step 6: Final answer
    x = 977,943.57

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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.