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Finding the Fourth Proportional to 722,886.68, 997,609.38 and 436,350.80

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Solution

The fourth proportional to 722,886.68, 997,609.38 and 436,350.80 is: 602,179.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,886.68 : 997,609.38 = 436,350.80 : x
  2. Step 2: Convert to fraction form
    722,886.68/997,609.38 = 436,350.80/x
  3. Step 3: Cross multiply
    722,886.68x = 997,609.38 × 436,350.80
  4. Step 4: Simplify right side
    722,886.68x = 435,307,651,050.50
  5. Step 5: Solve for x
    x = 435,307,651,050.50/722,886.68
  6. Step 6: Final answer
    x = 602,179.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.