Home / 718,538.40-1,078,196.40-297,856.80

Finding the Fourth Proportional to 718,538.40, 1,078,196.40 and 297,856.80

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Solution

The fourth proportional to 718,538.40, 1,078,196.40 and 297,856.80 is: 446,946.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,538.40 : 1,078,196.40 = 297,856.80 : x
  2. Step 2: Convert to fraction form
    718,538.40/1,078,196.40 = 297,856.80/x
  3. Step 3: Cross multiply
    718,538.40x = 1,078,196.40 × 297,856.80
  4. Step 4: Simplify right side
    718,538.40x = 321,148,129,475.52
  5. Step 5: Solve for x
    x = 321,148,129,475.52/718,538.40
  6. Step 6: Final answer
    x = 446,946.37

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Double scale
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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.