Home / 470,565.81-649,380.32-255,705.36

Finding the Fourth Proportional to 470,565.81, 649,380.32 and 255,705.36

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Solution

The fourth proportional to 470,565.81, 649,380.32 and 255,705.36 is: 352,873.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,565.81 : 649,380.32 = 255,705.36 : x
  2. Step 2: Convert to fraction form
    470,565.81/649,380.32 = 255,705.36/x
  3. Step 3: Cross multiply
    470,565.81x = 649,380.32 × 255,705.36
  4. Step 4: Simplify right side
    470,565.81x = 166,050,026,559.43
  5. Step 5: Solve for x
    x = 166,050,026,559.43/470,565.81
  6. Step 6: Final answer
    x = 352,873.13

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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.