Home / 1,221,369.30-1,832,710.05-511,469.10

Finding the Fourth Proportional to 1,221,369.30, 1,832,710.05 and 511,469.10

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Solution

The fourth proportional to 1,221,369.30, 1,832,710.05 and 511,469.10 is: 767,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,369.30 : 1,832,710.05 = 511,469.10 : x
  2. Step 2: Convert to fraction form
    1,221,369.30/1,832,710.05 = 511,469.10/x
  3. Step 3: Cross multiply
    1,221,369.30x = 1,832,710.05 × 511,469.10
  4. Step 4: Simplify right side
    1,221,369.30x = 937,374,559,834.46
  5. Step 5: Solve for x
    x = 937,374,559,834.46/1,221,369.30
  6. Step 6: Final answer
    x = 767,478.40

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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.