Home / 1,021,389.14-1,407,119.45-710,757.69

Finding the Fourth Proportional to 1,021,389.14, 1,407,119.45 and 710,757.69

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Solution

The fourth proportional to 1,021,389.14, 1,407,119.45 and 710,757.69 is: 979,177.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,389.14 : 1,407,119.45 = 710,757.69 : x
  2. Step 2: Convert to fraction form
    1,021,389.14/1,407,119.45 = 710,757.69/x
  3. Step 3: Cross multiply
    1,021,389.14x = 1,407,119.45 × 710,757.69
  4. Step 4: Simplify right side
    1,021,389.14x = 1,000,120,961,005.58
  5. Step 5: Solve for x
    x = 1,000,120,961,005.58/1,021,389.14
  6. Step 6: Final answer
    x = 979,177.20

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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.