Home / 1,006,389-1,388,816.82-553,670.28

Finding the Fourth Proportional to 1,006,389, 1,388,816.82 and 553,670.28

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Solution

The fourth proportional to 1,006,389, 1,388,816.82 and 553,670.28 is: 764,064.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,389 : 1,388,816.82 = 553,670.28 : x
  2. Step 2: Convert to fraction form
    1,006,389/1,388,816.82 = 553,670.28/x
  3. Step 3: Cross multiply
    1,006,389x = 1,388,816.82 × 553,670.28
  4. Step 4: Simplify right side
    1,006,389x = 768,946,597,598.11
  5. Step 5: Solve for x
    x = 768,946,597,598.11/1,006,389
  6. Step 6: Final answer
    x = 764,064.99

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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.