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Finding the Fourth Proportional to 546,003.40, 819,005.10 and 386,571.10

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Solution

The fourth proportional to 546,003.40, 819,005.10 and 386,571.10 is: 579,856.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,003.40 : 819,005.10 = 386,571.10 : x
  2. Step 2: Convert to fraction form
    546,003.40/819,005.10 = 386,571.10/x
  3. Step 3: Cross multiply
    546,003.40x = 819,005.10 × 386,571.10
  4. Step 4: Simplify right side
    546,003.40x = 316,603,702,412.61
  5. Step 5: Solve for x
    x = 316,603,702,412.61/546,003.40
  6. Step 6: Final answer
    x = 579,856.65

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Similar ratio
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1.5x scale

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.