Home / 1,208,017.99-1,665,695.20-771,859.11

Finding the Fourth Proportional to 1,208,017.99, 1,665,695.20 and 771,859.11

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Solution

The fourth proportional to 1,208,017.99, 1,665,695.20 and 771,859.11 is: 1,064,290.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,017.99 : 1,665,695.20 = 771,859.11 : x
  2. Step 2: Convert to fraction form
    1,208,017.99/1,665,695.20 = 771,859.11/x
  3. Step 3: Cross multiply
    1,208,017.99x = 1,665,695.20 × 771,859.11
  4. Step 4: Simplify right side
    1,208,017.99x = 1,285,682,014,603.27
  5. Step 5: Solve for x
    x = 1,285,682,014,603.27/1,208,017.99
  6. Step 6: Final answer
    x = 1,064,290.45

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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.