Home / 875,561.81-1,313,272.58-389,394.47

Finding the Fourth Proportional to 875,561.81, 1,313,272.58 and 389,394.47

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Solution

The fourth proportional to 875,561.81, 1,313,272.58 and 389,394.47 is: 584,060.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,561.81 : 1,313,272.58 = 389,394.47 : x
  2. Step 2: Convert to fraction form
    875,561.81/1,313,272.58 = 389,394.47/x
  3. Step 3: Cross multiply
    875,561.81x = 1,313,272.58 × 389,394.47
  4. Step 4: Simplify right side
    875,561.81x = 511,381,071,741.30
  5. Step 5: Solve for x
    x = 511,381,071,741.30/875,561.81
  6. Step 6: Final answer
    x = 584,060.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.