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Finding the Fourth Proportional to 604,845.90, 905,956.65 and 499,869.90

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Solution

The fourth proportional to 604,845.90, 905,956.65 and 499,869.90 is: 748,720.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,845.90 : 905,956.65 = 499,869.90 : x
  2. Step 2: Convert to fraction form
    604,845.90/905,956.65 = 499,869.90/x
  3. Step 3: Cross multiply
    604,845.90x = 905,956.65 × 499,869.90
  4. Step 4: Simplify right side
    604,845.90x = 452,860,460,039.84
  5. Step 5: Solve for x
    x = 452,860,460,039.84/604,845.90
  6. Step 6: Final answer
    x = 748,720.39

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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.