Home / 696,143.49-960,462.25-390,177.46

Finding the Fourth Proportional to 696,143.49, 960,462.25 and 390,177.46

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Solution

The fourth proportional to 696,143.49, 960,462.25 and 390,177.46 is: 538,323.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,143.49 : 960,462.25 = 390,177.46 : x
  2. Step 2: Convert to fraction form
    696,143.49/960,462.25 = 390,177.46/x
  3. Step 3: Cross multiply
    696,143.49x = 960,462.25 × 390,177.46
  4. Step 4: Simplify right side
    696,143.49x = 374,750,721,130.89
  5. Step 5: Solve for x
    x = 374,750,721,130.89/696,143.49
  6. Step 6: Final answer
    x = 538,323.96

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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.