Home / 1,389,308.12-2,082,547.91-631,687.58

Finding the Fourth Proportional to 1,389,308.12, 2,082,547.91 and 631,687.58

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Solution

The fourth proportional to 1,389,308.12, 2,082,547.91 and 631,687.58 is: 946,888.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,308.12 : 2,082,547.91 = 631,687.58 : x
  2. Step 2: Convert to fraction form
    1,389,308.12/2,082,547.91 = 631,687.58/x
  3. Step 3: Cross multiply
    1,389,308.12x = 2,082,547.91 × 631,687.58
  4. Step 4: Simplify right side
    1,389,308.12x = 1,315,519,649,501.96
  5. Step 5: Solve for x
    x = 1,315,519,649,501.96/1,389,308.12
  6. Step 6: Final answer
    x = 946,888.33

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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.