Home / 837,115.80-1,255,673.70-553,680.60

Finding the Fourth Proportional to 837,115.80, 1,255,673.70 and 553,680.60

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Solution

The fourth proportional to 837,115.80, 1,255,673.70 and 553,680.60 is: 830,520.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,115.80 : 1,255,673.70 = 553,680.60 : x
  2. Step 2: Convert to fraction form
    837,115.80/1,255,673.70 = 553,680.60/x
  3. Step 3: Cross multiply
    837,115.80x = 1,255,673.70 × 553,680.60
  4. Step 4: Simplify right side
    837,115.80x = 695,242,167,620.22
  5. Step 5: Solve for x
    x = 695,242,167,620.22/837,115.80
  6. Step 6: Final answer
    x = 830,520.90

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Double scale
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Similar ratio
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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.