Home / 770,947.20-1,156,420.80-490,665.60

Finding the Fourth Proportional to 770,947.20, 1,156,420.80 and 490,665.60

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Solution

The fourth proportional to 770,947.20, 1,156,420.80 and 490,665.60 is: 735,998.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,947.20 : 1,156,420.80 = 490,665.60 : x
  2. Step 2: Convert to fraction form
    770,947.20/1,156,420.80 = 490,665.60/x
  3. Step 3: Cross multiply
    770,947.20x = 1,156,420.80 × 490,665.60
  4. Step 4: Simplify right side
    770,947.20x = 567,415,905,684.48
  5. Step 5: Solve for x
    x = 567,415,905,684.48/770,947.20
  6. Step 6: Final answer
    x = 735,998.40

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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.