Home / 1,006,365-1,388,783.70-553,646.28

Finding the Fourth Proportional to 1,006,365, 1,388,783.70 and 553,646.28

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Solution

The fourth proportional to 1,006,365, 1,388,783.70 and 553,646.28 is: 764,031.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,365 : 1,388,783.70 = 553,646.28 : x
  2. Step 2: Convert to fraction form
    1,006,365/1,388,783.70 = 553,646.28/x
  3. Step 3: Cross multiply
    1,006,365x = 1,388,783.70 × 553,646.28
  4. Step 4: Simplify right side
    1,006,365x = 768,894,929,229.64
  5. Step 5: Solve for x
    x = 768,894,929,229.64/1,006,365
  6. Step 6: Final answer
    x = 764,031.87

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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.