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Finding the Fourth Proportional to 647,646.80, 970,595.40 and 433,806.80

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Solution

The fourth proportional to 647,646.80, 970,595.40 and 433,806.80 is: 650,124.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,646.80 : 970,595.40 = 433,806.80 : x
  2. Step 2: Convert to fraction form
    647,646.80/970,595.40 = 433,806.80/x
  3. Step 3: Cross multiply
    647,646.80x = 970,595.40 × 433,806.80
  4. Step 4: Simplify right side
    647,646.80x = 421,050,884,568.72
  5. Step 5: Solve for x
    x = 421,050,884,568.72/647,646.80
  6. Step 6: Final answer
    x = 650,124.24

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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.