Home / 1,006,669.20-1,389,202.56-553,960.20

Finding the Fourth Proportional to 1,006,669.20, 1,389,202.56 and 553,960.20

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Solution

The fourth proportional to 1,006,669.20, 1,389,202.56 and 553,960.20 is: 764,464.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,669.20 : 1,389,202.56 = 553,960.20 : x
  2. Step 2: Convert to fraction form
    1,006,669.20/1,389,202.56 = 553,960.20/x
  3. Step 3: Cross multiply
    1,006,669.20x = 1,389,202.56 × 553,960.20
  4. Step 4: Simplify right side
    1,006,669.20x = 769,562,927,978.11
  5. Step 5: Solve for x
    x = 769,562,927,978.11/1,006,669.20
  6. Step 6: Final answer
    x = 764,464.56

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1.5x scale

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.