Home / 669,887.60-1,004,831.40-457,311.20

Finding the Fourth Proportional to 669,887.60, 1,004,831.40 and 457,311.20

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Solution

The fourth proportional to 669,887.60, 1,004,831.40 and 457,311.20 is: 685,966.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,887.60 : 1,004,831.40 = 457,311.20 : x
  2. Step 2: Convert to fraction form
    669,887.60/1,004,831.40 = 457,311.20/x
  3. Step 3: Cross multiply
    669,887.60x = 1,004,831.40 × 457,311.20
  4. Step 4: Simplify right side
    669,887.60x = 459,520,653,331.68
  5. Step 5: Solve for x
    x = 459,520,653,331.68/669,887.60
  6. Step 6: Final answer
    x = 685,966.80

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Similar ratio
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1.5x scale

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.