Home / 764,276.80-1,146,415.20-484,110.40

Finding the Fourth Proportional to 764,276.80, 1,146,415.20 and 484,110.40

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Solution

The fourth proportional to 764,276.80, 1,146,415.20 and 484,110.40 is: 726,165.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,276.80 : 1,146,415.20 = 484,110.40 : x
  2. Step 2: Convert to fraction form
    764,276.80/1,146,415.20 = 484,110.40/x
  3. Step 3: Cross multiply
    764,276.80x = 1,146,415.20 × 484,110.40
  4. Step 4: Simplify right side
    764,276.80x = 554,991,521,038.08
  5. Step 5: Solve for x
    x = 554,991,521,038.08/764,276.80
  6. Step 6: Final answer
    x = 726,165.60

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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.