Home / 1,006,561-1,389,063.90-553,861.72

Finding the Fourth Proportional to 1,006,561, 1,389,063.90 and 553,861.72

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Solution

The fourth proportional to 1,006,561, 1,389,063.90 and 553,861.72 is: 764,334.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,561 : 1,389,063.90 = 553,861.72 : x
  2. Step 2: Convert to fraction form
    1,006,561/1,389,063.90 = 553,861.72/x
  3. Step 3: Cross multiply
    1,006,561x = 1,389,063.90 × 553,861.72
  4. Step 4: Simplify right side
    1,006,561x = 769,349,320,843.91
  5. Step 5: Solve for x
    x = 769,349,320,843.91/1,006,561
  6. Step 6: Final answer
    x = 764,334.52

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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.