Home / 1,159,318.36-1,599,707.10-643,066.48

Finding the Fourth Proportional to 1,159,318.36, 1,599,707.10 and 643,066.48

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Solution

The fourth proportional to 1,159,318.36, 1,599,707.10 and 643,066.48 is: 887,347.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,318.36 : 1,599,707.10 = 643,066.48 : x
  2. Step 2: Convert to fraction form
    1,159,318.36/1,599,707.10 = 643,066.48/x
  3. Step 3: Cross multiply
    1,159,318.36x = 1,599,707.10 × 643,066.48
  4. Step 4: Simplify right side
    1,159,318.36x = 1,028,718,013,828.01
  5. Step 5: Solve for x
    x = 1,028,718,013,828.01/1,159,318.36
  6. Step 6: Final answer
    x = 887,347.30

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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.