Home / 1,260,447.40-1,739,364.69-687,453.40

Finding the Fourth Proportional to 1,260,447.40, 1,739,364.69 and 687,453.40

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Solution

The fourth proportional to 1,260,447.40, 1,739,364.69 and 687,453.40 is: 948,656.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,447.40 : 1,739,364.69 = 687,453.40 : x
  2. Step 2: Convert to fraction form
    1,260,447.40/1,739,364.69 = 687,453.40/x
  3. Step 3: Cross multiply
    1,260,447.40x = 1,739,364.69 × 687,453.40
  4. Step 4: Simplify right side
    1,260,447.40x = 1,195,732,169,980.45
  5. Step 5: Solve for x
    x = 1,195,732,169,980.45/1,260,447.40
  6. Step 6: Final answer
    x = 948,656.94

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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.