Home / 431,245.20-646,867.80-369,037.20

Finding the Fourth Proportional to 431,245.20, 646,867.80 and 369,037.20

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Solution

The fourth proportional to 431,245.20, 646,867.80 and 369,037.20 is: 553,555.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,245.20 : 646,867.80 = 369,037.20 : x
  2. Step 2: Convert to fraction form
    431,245.20/646,867.80 = 369,037.20/x
  3. Step 3: Cross multiply
    431,245.20x = 646,867.80 × 369,037.20
  4. Step 4: Simplify right side
    431,245.20x = 238,718,281,682.16
  5. Step 5: Solve for x
    x = 238,718,281,682.16/431,245.20
  6. Step 6: Final answer
    x = 553,555.80

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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.