Home / 500,339.20-690,572.34-459,989.05

Finding the Fourth Proportional to 500,339.20, 690,572.34 and 459,989.05

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Solution

The fourth proportional to 500,339.20, 690,572.34 and 459,989.05 is: 634,880.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,339.20 : 690,572.34 = 459,989.05 : x
  2. Step 2: Convert to fraction form
    500,339.20/690,572.34 = 459,989.05/x
  3. Step 3: Cross multiply
    500,339.20x = 690,572.34 × 459,989.05
  4. Step 4: Simplify right side
    500,339.20x = 317,655,714,632.88
  5. Step 5: Solve for x
    x = 317,655,714,632.88/500,339.20
  6. Step 6: Final answer
    x = 634,880.73

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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.