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Finding the Fourth Proportional to 612,132.60, 918,198.90 and 606,227.70

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Solution

The fourth proportional to 612,132.60, 918,198.90 and 606,227.70 is: 909,341.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,132.60 : 918,198.90 = 606,227.70 : x
  2. Step 2: Convert to fraction form
    612,132.60/918,198.90 = 606,227.70/x
  3. Step 3: Cross multiply
    612,132.60x = 918,198.90 × 606,227.70
  4. Step 4: Simplify right side
    612,132.60x = 556,637,607,289.53
  5. Step 5: Solve for x
    x = 556,637,607,289.53/612,132.60
  6. Step 6: Final answer
    x = 909,341.55

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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.