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Finding the Fourth Proportional to 666,419.60, 999,337.80 and 266,927.60

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Solution

The fourth proportional to 666,419.60, 999,337.80 and 266,927.60 is: 400,274.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,419.60 : 999,337.80 = 266,927.60 : x
  2. Step 2: Convert to fraction form
    666,419.60/999,337.80 = 266,927.60/x
  3. Step 3: Cross multiply
    666,419.60x = 999,337.80 × 266,927.60
  4. Step 4: Simplify right side
    666,419.60x = 266,750,840,543.28
  5. Step 5: Solve for x
    x = 266,750,840,543.28/666,419.60
  6. Step 6: Final answer
    x = 400,274.60

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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.