Home / 1,277,694-1,916,865-478,977.84

Finding the Fourth Proportional to 1,277,694, 1,916,865 and 478,977.84

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Solution

The fourth proportional to 1,277,694, 1,916,865 and 478,977.84 is: 718,588.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,694 : 1,916,865 = 478,977.84 : x
  2. Step 2: Convert to fraction form
    1,277,694/1,916,865 = 478,977.84/x
  3. Step 3: Cross multiply
    1,277,694x = 1,916,865 × 478,977.84
  4. Step 4: Simplify right side
    1,277,694x = 918,135,857,271.60
  5. Step 5: Solve for x
    x = 918,135,857,271.60/1,277,694
  6. Step 6: Final answer
    x = 718,588.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.