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Finding the Third Proportional to 990,729 and 1,574,487.50

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Solution

The third proportional to 990,729 and 1,574,487.50 is: 2,502,208.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,729 : 1,574,487.50 = 1,574,487.50 : x
  2. Step 2: Convert to fraction form
    990,729/1,574,487.50 = 1,574,487.50/x
  3. Step 3: Cross multiply
    990,729x = 1,574,487.50 × 1,574,487.50
  4. Step 4: Simplify right side
    990,729x = 2,479,010,887,656.25
  5. Step 5: Solve for x
    x = 2,479,010,887,656.25/990,729
  6. Step 6: Final answer
    x = 2,502,208.87

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.