Home / 1,261,012.16-1,740,455.76-771,065.44

Finding the Fourth Proportional to 1,261,012.16, 1,740,455.76 and 771,065.44

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Solution

The fourth proportional to 1,261,012.16, 1,740,455.76 and 771,065.44 is: 1,064,228.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,012.16 : 1,740,455.76 = 771,065.44 : x
  2. Step 2: Convert to fraction form
    1,261,012.16/1,740,455.76 = 771,065.44/x
  3. Step 3: Cross multiply
    1,261,012.16x = 1,740,455.76 × 771,065.44
  4. Step 4: Simplify right side
    1,261,012.16x = 1,342,005,286,384.93
  5. Step 5: Solve for x
    x = 1,342,005,286,384.93/1,261,012.16
  6. Step 6: Final answer
    x = 1,064,228.66

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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.