Home / 1,005,869.60-1,388,072.32-553,160.56

Finding the Fourth Proportional to 1,005,869.60, 1,388,072.32 and 553,160.56

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Solution

The fourth proportional to 1,005,869.60, 1,388,072.32 and 553,160.56 is: 763,346.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,869.60 : 1,388,072.32 = 553,160.56 : x
  2. Step 2: Convert to fraction form
    1,005,869.60/1,388,072.32 = 553,160.56/x
  3. Step 3: Cross multiply
    1,005,869.60x = 1,388,072.32 × 553,160.56
  4. Step 4: Simplify right side
    1,005,869.60x = 767,826,861,851.70
  5. Step 5: Solve for x
    x = 767,826,861,851.70/1,005,869.60
  6. Step 6: Final answer
    x = 763,346.32

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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.