Home / 1,196,612.70-1,651,362.39-687,417.18

Finding the Fourth Proportional to 1,196,612.70, 1,651,362.39 and 687,417.18

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Solution

The fourth proportional to 1,196,612.70, 1,651,362.39 and 687,417.18 is: 948,656.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196,612.70 : 1,651,362.39 = 687,417.18 : x
  2. Step 2: Convert to fraction form
    1,196,612.70/1,651,362.39 = 687,417.18/x
  3. Step 3: Cross multiply
    1,196,612.70x = 1,651,362.39 × 687,417.18
  4. Step 4: Simplify right side
    1,196,612.70x = 1,135,174,877,291.86
  5. Step 5: Solve for x
    x = 1,135,174,877,291.86/1,196,612.70
  6. Step 6: Final answer
    x = 948,656.89

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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.