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Finding the Fourth Proportional to 721,362.10, 995,300.84 and 466,406.50

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Solution

The fourth proportional to 721,362.10, 995,300.84 and 466,406.50 is: 643,525.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,362.10 : 995,300.84 = 466,406.50 : x
  2. Step 2: Convert to fraction form
    721,362.10/995,300.84 = 466,406.50/x
  3. Step 3: Cross multiply
    721,362.10x = 995,300.84 × 466,406.50
  4. Step 4: Simplify right side
    721,362.10x = 464,214,781,231.46
  5. Step 5: Solve for x
    x = 464,214,781,231.46/721,362.10
  6. Step 6: Final answer
    x = 643,525.33

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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.