Home / 1,257,117.70-1,885,676.55-458,425.30

Finding the Fourth Proportional to 1,257,117.70, 1,885,676.55 and 458,425.30

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Solution

The fourth proportional to 1,257,117.70, 1,885,676.55 and 458,425.30 is: 687,637.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,117.70 : 1,885,676.55 = 458,425.30 : x
  2. Step 2: Convert to fraction form
    1,257,117.70/1,885,676.55 = 458,425.30/x
  3. Step 3: Cross multiply
    1,257,117.70x = 1,885,676.55 × 458,425.30
  4. Step 4: Simplify right side
    1,257,117.70x = 864,441,838,136.72
  5. Step 5: Solve for x
    x = 864,441,838,136.72/1,257,117.70
  6. Step 6: Final answer
    x = 687,637.95

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Double scale
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Similar ratio
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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.