Home / 772,111.40-1,158,167.10-492,866.60

Finding the Fourth Proportional to 772,111.40, 1,158,167.10 and 492,866.60

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Solution

The fourth proportional to 772,111.40, 1,158,167.10 and 492,866.60 is: 739,299.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,111.40 : 1,158,167.10 = 492,866.60 : x
  2. Step 2: Convert to fraction form
    772,111.40/1,158,167.10 = 492,866.60/x
  3. Step 3: Cross multiply
    772,111.40x = 1,158,167.10 × 492,866.60
  4. Step 4: Simplify right side
    772,111.40x = 570,821,880,808.86
  5. Step 5: Solve for x
    x = 570,821,880,808.86/772,111.40
  6. Step 6: Final answer
    x = 739,299.90

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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.