Home / 459,826.60-690,258.30-355,109.80

Finding the Fourth Proportional to 459,826.60, 690,258.30 and 355,109.80

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Solution

The fourth proportional to 459,826.60, 690,258.30 and 355,109.80 is: 533,065.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,826.60 : 690,258.30 = 355,109.80 : x
  2. Step 2: Convert to fraction form
    459,826.60/690,258.30 = 355,109.80/x
  3. Step 3: Cross multiply
    459,826.60x = 690,258.30 × 355,109.80
  4. Step 4: Simplify right side
    459,826.60x = 245,117,486,861.34
  5. Step 5: Solve for x
    x = 245,117,486,861.34/459,826.60
  6. Step 6: Final answer
    x = 533,065.04

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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.