Home / 992,991.30-1,490,102.55-520,016.10

Finding the Fourth Proportional to 992,991.30, 1,490,102.55 and 520,016.10

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Solution

The fourth proportional to 992,991.30, 1,490,102.55 and 520,016.10 is: 780,346.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,991.30 : 1,490,102.55 = 520,016.10 : x
  2. Step 2: Convert to fraction form
    992,991.30/1,490,102.55 = 520,016.10/x
  3. Step 3: Cross multiply
    992,991.30x = 1,490,102.55 × 520,016.10
  4. Step 4: Simplify right side
    992,991.30x = 774,877,316,651.06
  5. Step 5: Solve for x
    x = 774,877,316,651.06/992,991.30
  6. Step 6: Final answer
    x = 780,346.53

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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.