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Finding the Fourth Proportional to 604,502.80, 907,337.40 and 305,321.20

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Solution

The fourth proportional to 604,502.80, 907,337.40 and 305,321.20 is: 458,276.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,502.80 : 907,337.40 = 305,321.20 : x
  2. Step 2: Convert to fraction form
    604,502.80/907,337.40 = 305,321.20/x
  3. Step 3: Cross multiply
    604,502.80x = 907,337.40 × 305,321.20
  4. Step 4: Simplify right side
    604,502.80x = 277,029,343,772.88
  5. Step 5: Solve for x
    x = 277,029,343,772.88/604,502.80
  6. Step 6: Final answer
    x = 458,276.36

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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.