Home / 451,341.74-672,977.50-438,941.45

Finding the Fourth Proportional to 451,341.74, 672,977.50 and 438,941.45

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Solution

The fourth proportional to 451,341.74, 672,977.50 and 438,941.45 is: 654,487.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,341.74 : 672,977.50 = 438,941.45 : x
  2. Step 2: Convert to fraction form
    451,341.74/672,977.50 = 438,941.45/x
  3. Step 3: Cross multiply
    451,341.74x = 672,977.50 × 438,941.45
  4. Step 4: Simplify right side
    451,341.74x = 295,397,719,667.38
  5. Step 5: Solve for x
    x = 295,397,719,667.38/451,341.74
  6. Step 6: Final answer
    x = 654,487.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.