Home / 1,218,019.66-1,680,807.16-694,750.94

Finding the Fourth Proportional to 1,218,019.66, 1,680,807.16 and 694,750.94

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Solution

The fourth proportional to 1,218,019.66, 1,680,807.16 and 694,750.94 is: 958,722.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,019.66 : 1,680,807.16 = 694,750.94 : x
  2. Step 2: Convert to fraction form
    1,218,019.66/1,680,807.16 = 694,750.94/x
  3. Step 3: Cross multiply
    1,218,019.66x = 1,680,807.16 × 694,750.94
  4. Step 4: Simplify right side
    1,218,019.66x = 1,167,742,354,368.73
  5. Step 5: Solve for x
    x = 1,167,742,354,368.73/1,218,019.66
  6. Step 6: Final answer
    x = 958,722.09

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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.