Home / 1,428,860.17-1,971,852.47-784,340.29

Finding the Fourth Proportional to 1,428,860.17, 1,971,852.47 and 784,340.29

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Solution

The fourth proportional to 1,428,860.17, 1,971,852.47 and 784,340.29 is: 1,082,403.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,860.17 : 1,971,852.47 = 784,340.29 : x
  2. Step 2: Convert to fraction form
    1,428,860.17/1,971,852.47 = 784,340.29/x
  3. Step 3: Cross multiply
    1,428,860.17x = 1,971,852.47 × 784,340.29
  4. Step 4: Simplify right side
    1,428,860.17x = 1,546,603,338,157.02
  5. Step 5: Solve for x
    x = 1,546,603,338,157.02/1,428,860.17
  6. Step 6: Final answer
    x = 1,082,403.56

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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.