Home / 488,209.39-673,583.20-315,854.35

Finding the Fourth Proportional to 488,209.39, 673,583.20 and 315,854.35

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Solution

The fourth proportional to 488,209.39, 673,583.20 and 315,854.35 is: 435,784.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,209.39 : 673,583.20 = 315,854.35 : x
  2. Step 2: Convert to fraction form
    488,209.39/673,583.20 = 315,854.35/x
  3. Step 3: Cross multiply
    488,209.39x = 673,583.20 × 315,854.35
  4. Step 4: Simplify right side
    488,209.39x = 212,754,183,806.92
  5. Step 5: Solve for x
    x = 212,754,183,806.92/488,209.39
  6. Step 6: Final answer
    x = 435,784.70

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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.