Home / 1,312,442.60-1,811,226.64-731,665.61

Finding the Fourth Proportional to 1,312,442.60, 1,811,226.64 and 731,665.61

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Solution

The fourth proportional to 1,312,442.60, 1,811,226.64 and 731,665.61 is: 1,009,729.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,442.60 : 1,811,226.64 = 731,665.61 : x
  2. Step 2: Convert to fraction form
    1,312,442.60/1,811,226.64 = 731,665.61/x
  3. Step 3: Cross multiply
    1,312,442.60x = 1,811,226.64 × 731,665.61
  4. Step 4: Simplify right side
    1,312,442.60x = 1,325,212,251,870.68
  5. Step 5: Solve for x
    x = 1,325,212,251,870.68/1,312,442.60
  6. Step 6: Final answer
    x = 1,009,729.68

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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.