Home / 782,406.60-1,173,609.90-403,326.60

Finding the Fourth Proportional to 782,406.60, 1,173,609.90 and 403,326.60

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Solution

The fourth proportional to 782,406.60, 1,173,609.90 and 403,326.60 is: 604,989.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,406.60 : 1,173,609.90 = 403,326.60 : x
  2. Step 2: Convert to fraction form
    782,406.60/1,173,609.90 = 403,326.60/x
  3. Step 3: Cross multiply
    782,406.60x = 1,173,609.90 × 403,326.60
  4. Step 4: Simplify right side
    782,406.60x = 473,348,090,693.34
  5. Step 5: Solve for x
    x = 473,348,090,693.34/782,406.60
  6. Step 6: Final answer
    x = 604,989.90

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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.