Home / 774,200.40-1,161,300.60-490,765.20

Finding the Fourth Proportional to 774,200.40, 1,161,300.60 and 490,765.20

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Solution

The fourth proportional to 774,200.40, 1,161,300.60 and 490,765.20 is: 736,147.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,200.40 : 1,161,300.60 = 490,765.20 : x
  2. Step 2: Convert to fraction form
    774,200.40/1,161,300.60 = 490,765.20/x
  3. Step 3: Cross multiply
    774,200.40x = 1,161,300.60 × 490,765.20
  4. Step 4: Simplify right side
    774,200.40x = 569,925,921,219.12
  5. Step 5: Solve for x
    x = 569,925,921,219.12/774,200.40
  6. Step 6: Final answer
    x = 736,147.80

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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.