Home / 1,115,088.69-1,538,853.96-631,653.72

Finding the Fourth Proportional to 1,115,088.69, 1,538,853.96 and 631,653.72

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Solution

The fourth proportional to 1,115,088.69, 1,538,853.96 and 631,653.72 is: 871,700.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,088.69 : 1,538,853.96 = 631,653.72 : x
  2. Step 2: Convert to fraction form
    1,115,088.69/1,538,853.96 = 631,653.72/x
  3. Step 3: Cross multiply
    1,115,088.69x = 1,538,853.96 × 631,653.72
  4. Step 4: Simplify right side
    1,115,088.69x = 972,022,828,370.73
  5. Step 5: Solve for x
    x = 972,022,828,370.73/1,115,088.69
  6. Step 6: Final answer
    x = 871,700.02

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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.