Home / 696,654.06-961,370.06-390,731.03

Finding the Fourth Proportional to 696,654.06, 961,370.06 and 390,731.03

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Solution

The fourth proportional to 696,654.06, 961,370.06 and 390,731.03 is: 539,201.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,654.06 : 961,370.06 = 390,731.03 : x
  2. Step 2: Convert to fraction form
    696,654.06/961,370.06 = 390,731.03/x
  3. Step 3: Cross multiply
    696,654.06x = 961,370.06 × 390,731.03
  4. Step 4: Simplify right side
    696,654.06x = 375,637,113,754.96
  5. Step 5: Solve for x
    x = 375,637,113,754.96/696,654.06
  6. Step 6: Final answer
    x = 539,201.79

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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.