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Finding the Fourth Proportional to 400,653.51, 552,901.89 and 219,365.46

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Solution

The fourth proportional to 400,653.51, 552,901.89 and 219,365.46 is: 302,724.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,653.51 : 552,901.89 = 219,365.46 : x
  2. Step 2: Convert to fraction form
    400,653.51/552,901.89 = 219,365.46/x
  3. Step 3: Cross multiply
    400,653.51x = 552,901.89 × 219,365.46
  4. Step 4: Simplify right side
    400,653.51x = 121,287,577,434.72
  5. Step 5: Solve for x
    x = 121,287,577,434.72/400,653.51
  6. Step 6: Final answer
    x = 302,724.36

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1.5x scale

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.