Home / 527,426.40-791,139.59-128,064.47

Finding the Fourth Proportional to 527,426.40, 791,139.59 and 128,064.47

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Solution

The fourth proportional to 527,426.40, 791,139.59 and 128,064.47 is: 192,096.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,426.40 : 791,139.59 = 128,064.47 : x
  2. Step 2: Convert to fraction form
    527,426.40/791,139.59 = 128,064.47/x
  3. Step 3: Cross multiply
    527,426.40x = 791,139.59 × 128,064.47
  4. Step 4: Simplify right side
    527,426.40x = 101,316,871,649.05
  5. Step 5: Solve for x
    x = 101,316,871,649.05/527,426.40
  6. Step 6: Final answer
    x = 192,096.70

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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.