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Finding the Fourth Proportional to 604,999.20, 908,373.60 and 456,283.20

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Solution

The fourth proportional to 604,999.20, 908,373.60 and 456,283.20 is: 685,084.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,999.20 : 908,373.60 = 456,283.20 : x
  2. Step 2: Convert to fraction form
    604,999.20/908,373.60 = 456,283.20/x
  3. Step 3: Cross multiply
    604,999.20x = 908,373.60 × 456,283.20
  4. Step 4: Simplify right side
    604,999.20x = 414,475,613,003.52
  5. Step 5: Solve for x
    x = 414,475,613,003.52/604,999.20
  6. Step 6: Final answer
    x = 685,084.56

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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.