Home / 470,599.12-649,426.22-255,738.70

Finding the Fourth Proportional to 470,599.12, 649,426.22 and 255,738.70

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Solution

The fourth proportional to 470,599.12, 649,426.22 and 255,738.70 is: 352,919.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,599.12 : 649,426.22 = 255,738.70 : x
  2. Step 2: Convert to fraction form
    470,599.12/649,426.22 = 255,738.70/x
  3. Step 3: Cross multiply
    470,599.12x = 649,426.22 × 255,738.70
  4. Step 4: Simplify right side
    470,599.12x = 166,083,417,248.71
  5. Step 5: Solve for x
    x = 166,083,417,248.71/470,599.12
  6. Step 6: Final answer
    x = 352,919.10

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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.