Home / 1,428,607.28-1,971,413.07-784,014.68

Finding the Fourth Proportional to 1,428,607.28, 1,971,413.07 and 784,014.68

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Solution

The fourth proportional to 1,428,607.28, 1,971,413.07 and 784,014.68 is: 1,081,904.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,607.28 : 1,971,413.07 = 784,014.68 : x
  2. Step 2: Convert to fraction form
    1,428,607.28/1,971,413.07 = 784,014.68/x
  3. Step 3: Cross multiply
    1,428,607.28x = 1,971,413.07 × 784,014.68
  4. Step 4: Simplify right side
    1,428,607.28x = 1,545,616,784,738.27
  5. Step 5: Solve for x
    x = 1,545,616,784,738.27/1,428,607.28
  6. Step 6: Final answer
    x = 1,081,904.60

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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.