Home / 1,312,267.78-1,810,929.48-708,655.78

Finding the Fourth Proportional to 1,312,267.78, 1,810,929.48 and 708,655.78

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Solution

The fourth proportional to 1,312,267.78, 1,810,929.48 and 708,655.78 is: 977,944.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,267.78 : 1,810,929.48 = 708,655.78 : x
  2. Step 2: Convert to fraction form
    1,312,267.78/1,810,929.48 = 708,655.78/x
  3. Step 3: Cross multiply
    1,312,267.78x = 1,810,929.48 × 708,655.78
  4. Step 4: Simplify right side
    1,312,267.78x = 1,283,325,643,174.39
  5. Step 5: Solve for x
    x = 1,283,325,643,174.39/1,312,267.78
  6. Step 6: Final answer
    x = 977,944.95

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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.