Home / 745,058.66-1,028,268.47-418,425.35

Finding the Fourth Proportional to 745,058.66, 1,028,268.47 and 418,425.35

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Solution

The fourth proportional to 745,058.66, 1,028,268.47 and 418,425.35 is: 577,476.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,058.66 : 1,028,268.47 = 418,425.35 : x
  2. Step 2: Convert to fraction form
    745,058.66/1,028,268.47 = 418,425.35/x
  3. Step 3: Cross multiply
    745,058.66x = 1,028,268.47 × 418,425.35
  4. Step 4: Simplify right side
    745,058.66x = 430,253,590,358.44
  5. Step 5: Solve for x
    x = 430,253,590,358.44/745,058.66
  6. Step 6: Final answer
    x = 577,476.13

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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.