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Finding the Fourth Proportional to 604,518.80, 907,361.40 and 305,337.20

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Solution

The fourth proportional to 604,518.80, 907,361.40 and 305,337.20 is: 458,300.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,518.80 : 907,361.40 = 305,337.20 : x
  2. Step 2: Convert to fraction form
    604,518.80/907,361.40 = 305,337.20/x
  3. Step 3: Cross multiply
    604,518.80x = 907,361.40 × 305,337.20
  4. Step 4: Simplify right side
    604,518.80x = 277,051,189,264.08
  5. Step 5: Solve for x
    x = 277,051,189,264.08/604,518.80
  6. Step 6: Final answer
    x = 458,300.37

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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.