Home / 767,530.60-1,151,295.90-487,594.60

Finding the Fourth Proportional to 767,530.60, 1,151,295.90 and 487,594.60

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Solution

The fourth proportional to 767,530.60, 1,151,295.90 and 487,594.60 is: 731,391.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,530.60 : 1,151,295.90 = 487,594.60 : x
  2. Step 2: Convert to fraction form
    767,530.60/1,151,295.90 = 487,594.60/x
  3. Step 3: Cross multiply
    767,530.60x = 1,151,295.90 × 487,594.60
  4. Step 4: Simplify right side
    767,530.60x = 561,365,663,842.14
  5. Step 5: Solve for x
    x = 561,365,663,842.14/767,530.60
  6. Step 6: Final answer
    x = 731,391.90

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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.