Home / 640,565.04-960,887.12-214,139.19

Finding the Fourth Proportional to 640,565.04, 960,887.12 and 214,139.19

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Solution

The fourth proportional to 640,565.04, 960,887.12 and 214,139.19 is: 321,222.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,565.04 : 960,887.12 = 214,139.19 : x
  2. Step 2: Convert to fraction form
    640,565.04/960,887.12 = 214,139.19/x
  3. Step 3: Cross multiply
    640,565.04x = 960,887.12 × 214,139.19
  4. Step 4: Simplify right side
    640,565.04x = 205,763,588,487.54
  5. Step 5: Solve for x
    x = 205,763,588,487.54/640,565.04
  6. Step 6: Final answer
    x = 321,222.01

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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.