Home / 1,428,513.90-1,971,373.59-783,994.02

Finding the Fourth Proportional to 1,428,513.90, 1,971,373.59 and 783,994.02

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Solution

The fourth proportional to 1,428,513.90, 1,971,373.59 and 783,994.02 is: 1,081,925.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,513.90 : 1,971,373.59 = 783,994.02 : x
  2. Step 2: Convert to fraction form
    1,428,513.90/1,971,373.59 = 783,994.02/x
  3. Step 3: Cross multiply
    1,428,513.90x = 1,971,373.59 × 783,994.02
  4. Step 4: Simplify right side
    1,428,513.90x = 1,545,545,105,745.93
  5. Step 5: Solve for x
    x = 1,545,545,105,745.93/1,428,513.90
  6. Step 6: Final answer
    x = 1,081,925.14

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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.