Home / 1,289,242.25-1,779,209.66-716,282.42

Finding the Fourth Proportional to 1,289,242.25, 1,779,209.66 and 716,282.42

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Solution

The fourth proportional to 1,289,242.25, 1,779,209.66 and 716,282.42 is: 988,500.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,242.25 : 1,779,209.66 = 716,282.42 : x
  2. Step 2: Convert to fraction form
    1,289,242.25/1,779,209.66 = 716,282.42/x
  3. Step 3: Cross multiply
    1,289,242.25x = 1,779,209.66 × 716,282.42
  4. Step 4: Simplify right side
    1,289,242.25x = 1,274,416,600,952.18
  5. Step 5: Solve for x
    x = 1,274,416,600,952.18/1,289,242.25
  6. Step 6: Final answer
    x = 988,500.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.