Home / 673,503.80-1,010,255.70-393,567.80

Finding the Fourth Proportional to 673,503.80, 1,010,255.70 and 393,567.80

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Solution

The fourth proportional to 673,503.80, 1,010,255.70 and 393,567.80 is: 590,351.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,503.80 : 1,010,255.70 = 393,567.80 : x
  2. Step 2: Convert to fraction form
    673,503.80/1,010,255.70 = 393,567.80/x
  3. Step 3: Cross multiply
    673,503.80x = 1,010,255.70 × 393,567.80
  4. Step 4: Simplify right side
    673,503.80x = 397,604,113,286.46
  5. Step 5: Solve for x
    x = 397,604,113,286.46/673,503.80
  6. Step 6: Final answer
    x = 590,351.70

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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.