Home / 403,209.40-604,814.10-263,126.20

Finding the Fourth Proportional to 403,209.40, 604,814.10 and 263,126.20

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Solution

The fourth proportional to 403,209.40, 604,814.10 and 263,126.20 is: 394,689.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,209.40 : 604,814.10 = 263,126.20 : x
  2. Step 2: Convert to fraction form
    403,209.40/604,814.10 = 263,126.20/x
  3. Step 3: Cross multiply
    403,209.40x = 604,814.10 × 263,126.20
  4. Step 4: Simplify right side
    403,209.40x = 159,142,435,839.42
  5. Step 5: Solve for x
    x = 159,142,435,839.42/403,209.40
  6. Step 6: Final answer
    x = 394,689.30

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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.