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Finding the Fourth Proportional to 802,293.80, 1,200,728.12 and 780,704.16

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Solution

The fourth proportional to 802,293.80, 1,200,728.12 and 780,704.16 is: 1,168,416.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,293.80 : 1,200,728.12 = 780,704.16 : x
  2. Step 2: Convert to fraction form
    802,293.80/1,200,728.12 = 780,704.16/x
  3. Step 3: Cross multiply
    802,293.80x = 1,200,728.12 × 780,704.16
  4. Step 4: Simplify right side
    802,293.80x = 937,413,438,312.98
  5. Step 5: Solve for x
    x = 937,413,438,312.98/802,293.80
  6. Step 6: Final answer
    x = 1,168,416.66

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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.