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Finding the Fourth Proportional to 721,969.42, 996,004.98 and 435,330.28

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Solution

The fourth proportional to 721,969.42, 996,004.98 and 435,330.28 is: 600,567.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,969.42 : 996,004.98 = 435,330.28 : x
  2. Step 2: Convert to fraction form
    721,969.42/996,004.98 = 435,330.28/x
  3. Step 3: Cross multiply
    721,969.42x = 996,004.98 × 435,330.28
  4. Step 4: Simplify right side
    721,969.42x = 433,591,126,824.79
  5. Step 5: Solve for x
    x = 433,591,126,824.79/721,969.42
  6. Step 6: Final answer
    x = 600,567.16

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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.