Home / 372,667.20-513,300.96-286,461.12

Finding the Fourth Proportional to 372,667.20, 513,300.96 and 286,461.12

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Solution

The fourth proportional to 372,667.20, 513,300.96 and 286,461.12 is: 394,563.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,667.20 : 513,300.96 = 286,461.12 : x
  2. Step 2: Convert to fraction form
    372,667.20/513,300.96 = 286,461.12/x
  3. Step 3: Cross multiply
    372,667.20x = 513,300.96 × 286,461.12
  4. Step 4: Simplify right side
    372,667.20x = 147,040,767,898.68
  5. Step 5: Solve for x
    x = 147,040,767,898.68/372,667.20
  6. Step 6: Final answer
    x = 394,563.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.