Home / 426,600.32-640,017.18-186,670.62

Finding the Fourth Proportional to 426,600.32, 640,017.18 and 186,670.62

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Solution

The fourth proportional to 426,600.32, 640,017.18 and 186,670.62 is: 280,057.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,600.32 : 640,017.18 = 186,670.62 : x
  2. Step 2: Convert to fraction form
    426,600.32/640,017.18 = 186,670.62/x
  3. Step 3: Cross multiply
    426,600.32x = 640,017.18 × 186,670.62
  4. Step 4: Simplify right side
    426,600.32x = 119,472,403,801.25
  5. Step 5: Solve for x
    x = 119,472,403,801.25/426,600.32
  6. Step 6: Final answer
    x = 280,057.00

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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.