Home / 992,996.30-1,490,110.05-520,021.10

Finding the Fourth Proportional to 992,996.30, 1,490,110.05 and 520,021.10

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Solution

The fourth proportional to 992,996.30, 1,490,110.05 and 520,021.10 is: 780,354.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,996.30 : 1,490,110.05 = 520,021.10 : x
  2. Step 2: Convert to fraction form
    992,996.30/1,490,110.05 = 520,021.10/x
  3. Step 3: Cross multiply
    992,996.30x = 1,490,110.05 × 520,021.10
  4. Step 4: Simplify right side
    992,996.30x = 774,888,667,322.06
  5. Step 5: Solve for x
    x = 774,888,667,322.06/992,996.30
  6. Step 6: Final answer
    x = 780,354.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.