Home / 470,538.13-649,346.73-255,678.20

Finding the Fourth Proportional to 470,538.13, 649,346.73 and 255,678.20

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Solution

The fourth proportional to 470,538.13, 649,346.73 and 255,678.20 is: 352,838.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,538.13 : 649,346.73 = 255,678.20 : x
  2. Step 2: Convert to fraction form
    470,538.13/649,346.73 = 255,678.20/x
  3. Step 3: Cross multiply
    470,538.13x = 649,346.73 × 255,678.20
  4. Step 4: Simplify right side
    470,538.13x = 166,023,801,823.90
  5. Step 5: Solve for x
    x = 166,023,801,823.90/470,538.13
  6. Step 6: Final answer
    x = 352,838.15

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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.