Home / 1,277,515.17-1,916,197.16-478,729.89

Finding the Fourth Proportional to 1,277,515.17, 1,916,197.16 and 478,729.89

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Solution

The fourth proportional to 1,277,515.17, 1,916,197.16 and 478,729.89 is: 718,066.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,515.17 : 1,916,197.16 = 478,729.89 : x
  2. Step 2: Convert to fraction form
    1,277,515.17/1,916,197.16 = 478,729.89/x
  3. Step 3: Cross multiply
    1,277,515.17x = 1,916,197.16 × 478,729.89
  4. Step 4: Simplify right side
    1,277,515.17x = 917,340,853,231.46
  5. Step 5: Solve for x
    x = 917,340,853,231.46/1,277,515.17
  6. Step 6: Final answer
    x = 718,066.51

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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.