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Finding the Fourth Proportional to 604,133.90, 906,200.85 and 405,068.30

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Solution

The fourth proportional to 604,133.90, 906,200.85 and 405,068.30 is: 607,602.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,133.90 : 906,200.85 = 405,068.30 : x
  2. Step 2: Convert to fraction form
    604,133.90/906,200.85 = 405,068.30/x
  3. Step 3: Cross multiply
    604,133.90x = 906,200.85 × 405,068.30
  4. Step 4: Simplify right side
    604,133.90x = 367,073,237,768.06
  5. Step 5: Solve for x
    x = 367,073,237,768.06/604,133.90
  6. Step 6: Final answer
    x = 607,602.45

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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.