Home / 1,351,901.72-1,865,841.64-771,314.24

Finding the Fourth Proportional to 1,351,901.72, 1,865,841.64 and 771,314.24

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Solution

The fourth proportional to 1,351,901.72, 1,865,841.64 and 771,314.24 is: 1,064,537.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,901.72 : 1,865,841.64 = 771,314.24 : x
  2. Step 2: Convert to fraction form
    1,351,901.72/1,865,841.64 = 771,314.24/x
  3. Step 3: Cross multiply
    1,351,901.72x = 1,865,841.64 × 771,314.24
  4. Step 4: Simplify right side
    1,351,901.72x = 1,439,150,226,516.95
  5. Step 5: Solve for x
    x = 1,439,150,226,516.95/1,351,901.72
  6. Step 6: Final answer
    x = 1,064,537.61

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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.