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Finding the Fourth Proportional to 612,274.35, 918,056.62 and 207,331.39

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Solution

The fourth proportional to 612,274.35, 918,056.62 and 207,331.39 is: 310,876.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,274.35 : 918,056.62 = 207,331.39 : x
  2. Step 2: Convert to fraction form
    612,274.35/918,056.62 = 207,331.39/x
  3. Step 3: Cross multiply
    612,274.35x = 918,056.62 × 207,331.39
  4. Step 4: Simplify right side
    612,274.35x = 190,341,955,123.30
  5. Step 5: Solve for x
    x = 190,341,955,123.30/612,274.35
  6. Step 6: Final answer
    x = 310,876.91

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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.