Home / 1,416,252.80-1,954,404.16-771,678.40

Finding the Fourth Proportional to 1,416,252.80, 1,954,404.16 and 771,678.40

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Solution

The fourth proportional to 1,416,252.80, 1,954,404.16 and 771,678.40 is: 1,064,902.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416,252.80 : 1,954,404.16 = 771,678.40 : x
  2. Step 2: Convert to fraction form
    1,416,252.80/1,954,404.16 = 771,678.40/x
  3. Step 3: Cross multiply
    1,416,252.80x = 1,954,404.16 × 771,678.40
  4. Step 4: Simplify right side
    1,416,252.80x = 1,508,171,475,142.14
  5. Step 5: Solve for x
    x = 1,508,171,475,142.14/1,416,252.80
  6. Step 6: Final answer
    x = 1,064,902.73

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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.