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Finding the Fourth Proportional to 662,957.79, 994,931.93 and 449,218.90

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Solution

The fourth proportional to 662,957.79, 994,931.93 and 449,218.90 is: 674,163.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,957.79 : 994,931.93 = 449,218.90 : x
  2. Step 2: Convert to fraction form
    662,957.79/994,931.93 = 449,218.90/x
  3. Step 3: Cross multiply
    662,957.79x = 994,931.93 × 449,218.90
  4. Step 4: Simplify right side
    662,957.79x = 446,942,224,923.38
  5. Step 5: Solve for x
    x = 446,942,224,923.38/662,957.79
  6. Step 6: Final answer
    x = 674,163.93

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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.