Home / 762,716.40-1,144,074.60-620,998.80

Finding the Fourth Proportional to 762,716.40, 1,144,074.60 and 620,998.80

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Solution

The fourth proportional to 762,716.40, 1,144,074.60 and 620,998.80 is: 931,498.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,716.40 : 1,144,074.60 = 620,998.80 : x
  2. Step 2: Convert to fraction form
    762,716.40/1,144,074.60 = 620,998.80/x
  3. Step 3: Cross multiply
    762,716.40x = 1,144,074.60 × 620,998.80
  4. Step 4: Simplify right side
    762,716.40x = 710,468,953,710.48
  5. Step 5: Solve for x
    x = 710,468,953,710.48/762,716.40
  6. Step 6: Final answer
    x = 931,498.20

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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.