Home / 479,841.02-720,196.80-255,390.42

Finding the Fourth Proportional to 479,841.02, 720,196.80 and 255,390.42

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Solution

The fourth proportional to 479,841.02, 720,196.80 and 255,390.42 is: 383,317.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,841.02 : 720,196.80 = 255,390.42 : x
  2. Step 2: Convert to fraction form
    479,841.02/720,196.80 = 255,390.42/x
  3. Step 3: Cross multiply
    479,841.02x = 720,196.80 × 255,390.42
  4. Step 4: Simplify right side
    479,841.02x = 183,931,363,234.66
  5. Step 5: Solve for x
    x = 183,931,363,234.66/479,841.02
  6. Step 6: Final answer
    x = 383,317.30

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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.