Home / 1,258,622.40-1,736,902.08-685,666.74

Finding the Fourth Proportional to 1,258,622.40, 1,736,902.08 and 685,666.74

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Solution

The fourth proportional to 1,258,622.40, 1,736,902.08 and 685,666.74 is: 946,221.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,622.40 : 1,736,902.08 = 685,666.74 : x
  2. Step 2: Convert to fraction form
    1,258,622.40/1,736,902.08 = 685,666.74/x
  3. Step 3: Cross multiply
    1,258,622.40x = 1,736,902.08 × 685,666.74
  4. Step 4: Simplify right side
    1,258,622.40x = 1,190,935,986,892.82
  5. Step 5: Solve for x
    x = 1,190,935,986,892.82/1,258,622.40
  6. Step 6: Final answer
    x = 946,221.83

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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.