Home / 915,269.38-1,263,011.61-512,783.62

Finding the Fourth Proportional to 915,269.38, 1,263,011.61 and 512,783.62

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Solution

The fourth proportional to 915,269.38, 1,263,011.61 and 512,783.62 is: 707,607.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,269.38 : 1,263,011.61 = 512,783.62 : x
  2. Step 2: Convert to fraction form
    915,269.38/1,263,011.61 = 512,783.62/x
  3. Step 3: Cross multiply
    915,269.38x = 1,263,011.61 × 512,783.62
  4. Step 4: Simplify right side
    915,269.38x = 647,651,665,477.83
  5. Step 5: Solve for x
    x = 647,651,665,477.83/915,269.38
  6. Step 6: Final answer
    x = 707,607.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.