Home / 1,006,560-1,389,062.52-553,860.72

Finding the Fourth Proportional to 1,006,560, 1,389,062.52 and 553,860.72

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Solution

The fourth proportional to 1,006,560, 1,389,062.52 and 553,860.72 is: 764,333.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,560 : 1,389,062.52 = 553,860.72 : x
  2. Step 2: Convert to fraction form
    1,006,560/1,389,062.52 = 553,860.72/x
  3. Step 3: Cross multiply
    1,006,560x = 1,389,062.52 × 553,860.72
  4. Step 4: Simplify right side
    1,006,560x = 769,347,167,452.21
  5. Step 5: Solve for x
    x = 769,347,167,452.21/1,006,560
  6. Step 6: Final answer
    x = 764,333.14

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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.