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Finding the Fourth Proportional to 472,923.20, 709,903.20 and 262,452.80

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Solution

The fourth proportional to 472,923.20, 709,903.20 and 262,452.80 is: 393,966.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,923.20 : 709,903.20 = 262,452.80 : x
  2. Step 2: Convert to fraction form
    472,923.20/709,903.20 = 262,452.80/x
  3. Step 3: Cross multiply
    472,923.20x = 709,903.20 × 262,452.80
  4. Step 4: Simplify right side
    472,923.20x = 186,316,082,568.96
  5. Step 5: Solve for x
    x = 186,316,082,568.96/472,923.20
  6. Step 6: Final answer
    x = 393,966.89

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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.