Home / 858,778.80-1,288,168.20-753,802.80

Finding the Fourth Proportional to 858,778.80, 1,288,168.20 and 753,802.80

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Solution

The fourth proportional to 858,778.80, 1,288,168.20 and 753,802.80 is: 1,130,704.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,778.80 : 1,288,168.20 = 753,802.80 : x
  2. Step 2: Convert to fraction form
    858,778.80/1,288,168.20 = 753,802.80/x
  3. Step 3: Cross multiply
    858,778.80x = 1,288,168.20 × 753,802.80
  4. Step 4: Simplify right side
    858,778.80x = 971,024,796,030.96
  5. Step 5: Solve for x
    x = 971,024,796,030.96/858,778.80
  6. Step 6: Final answer
    x = 1,130,704.20

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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.