Home / 486,298.12-671,203.38-285,158.92

Finding the Fourth Proportional to 486,298.12, 671,203.38 and 285,158.92

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Solution

The fourth proportional to 486,298.12, 671,203.38 and 285,158.92 is: 393,584.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,298.12 : 671,203.38 = 285,158.92 : x
  2. Step 2: Convert to fraction form
    486,298.12/671,203.38 = 285,158.92/x
  3. Step 3: Cross multiply
    486,298.12x = 671,203.38 × 285,158.92
  4. Step 4: Simplify right side
    486,298.12x = 191,399,630,941.15
  5. Step 5: Solve for x
    x = 191,399,630,941.15/486,298.12
  6. Step 6: Final answer
    x = 393,584.97

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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.