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Finding the Fourth Proportional to 604,853.40, 907,280.10 and 415,896.60

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Solution

The fourth proportional to 604,853.40, 907,280.10 and 415,896.60 is: 623,844.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,853.40 : 907,280.10 = 415,896.60 : x
  2. Step 2: Convert to fraction form
    604,853.40/907,280.10 = 415,896.60/x
  3. Step 3: Cross multiply
    604,853.40x = 907,280.10 × 415,896.60
  4. Step 4: Simplify right side
    604,853.40x = 377,334,708,837.66
  5. Step 5: Solve for x
    x = 377,334,708,837.66/604,853.40
  6. Step 6: Final answer
    x = 623,844.90

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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.