Home / 864,528.60-1,297,376.10-509,165.40

Finding the Fourth Proportional to 864,528.60, 1,297,376.10 and 509,165.40

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Solution

The fourth proportional to 864,528.60, 1,297,376.10 and 509,165.40 is: 764,091.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,528.60 : 1,297,376.10 = 509,165.40 : x
  2. Step 2: Convert to fraction form
    864,528.60/1,297,376.10 = 509,165.40/x
  3. Step 3: Cross multiply
    864,528.60x = 1,297,376.10 × 509,165.40
  4. Step 4: Simplify right side
    864,528.60x = 660,579,020,906.94
  5. Step 5: Solve for x
    x = 660,579,020,906.94/864,528.60
  6. Step 6: Final answer
    x = 764,091.58

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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.