Home / 1,537,240.78-2,121,392.43-858,177.28

Finding the Fourth Proportional to 1,537,240.78, 2,121,392.43 and 858,177.28

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Solution

The fourth proportional to 1,537,240.78, 2,121,392.43 and 858,177.28 is: 1,184,284.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,537,240.78 : 2,121,392.43 = 858,177.28 : x
  2. Step 2: Convert to fraction form
    1,537,240.78/2,121,392.43 = 858,177.28/x
  3. Step 3: Cross multiply
    1,537,240.78x = 2,121,392.43 × 858,177.28
  4. Step 4: Simplify right side
    1,537,240.78x = 1,820,530,788,041.73
  5. Step 5: Solve for x
    x = 1,820,530,788,041.73/1,537,240.78
  6. Step 6: Final answer
    x = 1,184,284.73

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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.