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Finding the Fourth Proportional to 520,030.20, 780,045.30 and 204,497.40

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Solution

The fourth proportional to 520,030.20, 780,045.30 and 204,497.40 is: 306,746.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,030.20 : 780,045.30 = 204,497.40 : x
  2. Step 2: Convert to fraction form
    520,030.20/780,045.30 = 204,497.40/x
  3. Step 3: Cross multiply
    520,030.20x = 780,045.30 × 204,497.40
  4. Step 4: Simplify right side
    520,030.20x = 159,517,235,732.22
  5. Step 5: Solve for x
    x = 159,517,235,732.22/520,030.20
  6. Step 6: Final answer
    x = 306,746.10

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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.