Home / 787,518.40-1,182,152.40-488,336.80

Finding the Fourth Proportional to 787,518.40, 1,182,152.40 and 488,336.80

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Solution

The fourth proportional to 787,518.40, 1,182,152.40 and 488,336.80 is: 733,047.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,518.40 : 1,182,152.40 = 488,336.80 : x
  2. Step 2: Convert to fraction form
    787,518.40/1,182,152.40 = 488,336.80/x
  3. Step 3: Cross multiply
    787,518.40x = 1,182,152.40 × 488,336.80
  4. Step 4: Simplify right side
    787,518.40x = 577,288,520,128.32
  5. Step 5: Solve for x
    x = 577,288,520,128.32/787,518.40
  6. Step 6: Final answer
    x = 733,047.66

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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.