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Finding the Fourth Proportional to 454,683.80, 680,859.30 and 433,688.60

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Solution

The fourth proportional to 454,683.80, 680,859.30 and 433,688.60 is: 649,420.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,683.80 : 680,859.30 = 433,688.60 : x
  2. Step 2: Convert to fraction form
    454,683.80/680,859.30 = 433,688.60/x
  3. Step 3: Cross multiply
    454,683.80x = 680,859.30 × 433,688.60
  4. Step 4: Simplify right side
    454,683.80x = 295,280,916,613.98
  5. Step 5: Solve for x
    x = 295,280,916,613.98/454,683.80
  6. Step 6: Final answer
    x = 649,420.36

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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.