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Finding the Fourth Proportional to 1,071,699, 1,607,066.82 and 770,919

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Solution

The fourth proportional to 1,071,699, 1,607,066.82 and 770,919 is: 1,156,032.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,699 : 1,607,066.82 = 770,919 : x
  2. Step 2: Convert to fraction form
    1,071,699/1,607,066.82 = 770,919/x
  3. Step 3: Cross multiply
    1,071,699x = 1,607,066.82 × 770,919
  4. Step 4: Simplify right side
    1,071,699x = 1,238,918,345,807.58
  5. Step 5: Solve for x
    x = 1,238,918,345,807.58/1,071,699
  6. Step 6: Final answer
    x = 1,156,032.01

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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.