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Finding the Fourth Proportional to 386,053.80, 578,043.90 and 386,053.80

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Solution

The fourth proportional to 386,053.80, 578,043.90 and 386,053.80 is: 578,043.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,053.80 : 578,043.90 = 386,053.80 : x
  2. Step 2: Convert to fraction form
    386,053.80/578,043.90 = 386,053.80/x
  3. Step 3: Cross multiply
    386,053.80x = 578,043.90 × 386,053.80
  4. Step 4: Simplify right side
    386,053.80x = 223,156,044,161.82
  5. Step 5: Solve for x
    x = 223,156,044,161.82/386,053.80
  6. Step 6: Final answer
    x = 578,043.90

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