Home / 1,256,935.72-1,885,698.78-415,487.44

Finding the Fourth Proportional to 1,256,935.72, 1,885,698.78 and 415,487.44

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Solution

The fourth proportional to 1,256,935.72, 1,885,698.78 and 415,487.44 is: 623,328.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,935.72 : 1,885,698.78 = 415,487.44 : x
  2. Step 2: Convert to fraction form
    1,256,935.72/1,885,698.78 = 415,487.44/x
  3. Step 3: Cross multiply
    1,256,935.72x = 1,885,698.78 × 415,487.44
  4. Step 4: Simplify right side
    1,256,935.72x = 783,484,158,713.32
  5. Step 5: Solve for x
    x = 783,484,158,713.32/1,256,935.72
  6. Step 6: Final answer
    x = 623,328.74

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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.