Home / 1,396,332-1,926,938.16-760,428

Finding the Fourth Proportional to 1,396,332, 1,926,938.16 and 760,428

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Solution

The fourth proportional to 1,396,332, 1,926,938.16 and 760,428 is: 1,049,390.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,332 : 1,926,938.16 = 760,428 : x
  2. Step 2: Convert to fraction form
    1,396,332/1,926,938.16 = 760,428/x
  3. Step 3: Cross multiply
    1,396,332x = 1,926,938.16 × 760,428
  4. Step 4: Simplify right side
    1,396,332x = 1,465,297,731,132.48
  5. Step 5: Solve for x
    x = 1,465,297,731,132.48/1,396,332
  6. Step 6: Final answer
    x = 1,049,390.64

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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.