Home / 769,455.60-1,152,433.80-486,020.40

Finding the Fourth Proportional to 769,455.60, 1,152,433.80 and 486,020.40

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Solution

The fourth proportional to 769,455.60, 1,152,433.80 and 486,020.40 is: 727,925.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,455.60 : 1,152,433.80 = 486,020.40 : x
  2. Step 2: Convert to fraction form
    769,455.60/1,152,433.80 = 486,020.40/x
  3. Step 3: Cross multiply
    769,455.60x = 1,152,433.80 × 486,020.40
  4. Step 4: Simplify right side
    769,455.60x = 560,106,336,449.52
  5. Step 5: Solve for x
    x = 560,106,336,449.52/769,455.60
  6. Step 6: Final answer
    x = 727,925.48

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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.