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Finding the Fourth Proportional to 470,583.82, 649,499.98 and 279,560.32

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Solution

The fourth proportional to 470,583.82, 649,499.98 and 279,560.32 is: 385,849.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,583.82 : 649,499.98 = 279,560.32 : x
  2. Step 2: Convert to fraction form
    470,583.82/649,499.98 = 279,560.32/x
  3. Step 3: Cross multiply
    470,583.82x = 649,499.98 × 279,560.32
  4. Step 4: Simplify right side
    470,583.82x = 181,574,422,248.79
  5. Step 5: Solve for x
    x = 181,574,422,248.79/470,583.82
  6. Step 6: Final answer
    x = 385,849.27

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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.