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Finding the Fourth Proportional to 720,050.94, 993,585.13 and 397,741.70

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Solution

The fourth proportional to 720,050.94, 993,585.13 and 397,741.70 is: 548,836.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,050.94 : 993,585.13 = 397,741.70 : x
  2. Step 2: Convert to fraction form
    720,050.94/993,585.13 = 397,741.70/x
  3. Step 3: Cross multiply
    720,050.94x = 993,585.13 × 397,741.70
  4. Step 4: Simplify right side
    720,050.94x = 395,190,238,700.92
  5. Step 5: Solve for x
    x = 395,190,238,700.92/720,050.94
  6. Step 6: Final answer
    x = 548,836.50

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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.