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Finding the Fourth Proportional to 604,423.80, 906,635.70 and 363,886.20

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Solution

The fourth proportional to 604,423.80, 906,635.70 and 363,886.20 is: 545,829.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,423.80 : 906,635.70 = 363,886.20 : x
  2. Step 2: Convert to fraction form
    604,423.80/906,635.70 = 363,886.20/x
  3. Step 3: Cross multiply
    604,423.80x = 906,635.70 × 363,886.20
  4. Step 4: Simplify right side
    604,423.80x = 329,912,219,657.34
  5. Step 5: Solve for x
    x = 329,912,219,657.34/604,423.80
  6. Step 6: Final answer
    x = 545,829.30

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Double scale
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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.