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Finding the Fourth Proportional to 604,445.40, 906,408.90 and 304,810.20

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Solution

The fourth proportional to 604,445.40, 906,408.90 and 304,810.20 is: 457,084.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,445.40 : 906,408.90 = 304,810.20 : x
  2. Step 2: Convert to fraction form
    604,445.40/906,408.90 = 304,810.20/x
  3. Step 3: Cross multiply
    604,445.40x = 906,408.90 × 304,810.20
  4. Step 4: Simplify right side
    604,445.40x = 276,282,678,090.78
  5. Step 5: Solve for x
    x = 276,282,678,090.78/604,445.40
  6. Step 6: Final answer
    x = 457,084.59

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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.