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Finding the Fourth Proportional to 713,705.58, 984,764.79 and 484,440.30

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Solution

The fourth proportional to 713,705.58, 984,764.79 and 484,440.30 is: 668,426.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,705.58 : 984,764.79 = 484,440.30 : x
  2. Step 2: Convert to fraction form
    713,705.58/984,764.79 = 484,440.30/x
  3. Step 3: Cross multiply
    713,705.58x = 984,764.79 × 484,440.30
  4. Step 4: Simplify right side
    713,705.58x = 477,059,750,297.04
  5. Step 5: Solve for x
    x = 477,059,750,297.04/713,705.58
  6. Step 6: Final answer
    x = 668,426.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.