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Finding the Fourth Proportional to 607,205.03, 909,391.10 and 479,991.47

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Solution

The fourth proportional to 607,205.03, 909,391.10 and 479,991.47 is: 718,867.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,205.03 : 909,391.10 = 479,991.47 : x
  2. Step 2: Convert to fraction form
    607,205.03/909,391.10 = 479,991.47/x
  3. Step 3: Cross multiply
    607,205.03x = 909,391.10 × 479,991.47
  4. Step 4: Simplify right side
    607,205.03x = 436,499,963,947.00
  5. Step 5: Solve for x
    x = 436,499,963,947.00/607,205.03
  6. Step 6: Final answer
    x = 718,867.51

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Similar ratio
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1.5x scale

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.