Home / 839,323.80-1,260,297.90-485,029.80

Finding the Fourth Proportional to 839,323.80, 1,260,297.90 and 485,029.80

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Solution

The fourth proportional to 839,323.80, 1,260,297.90 and 485,029.80 is: 728,303.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,323.80 : 1,260,297.90 = 485,029.80 : x
  2. Step 2: Convert to fraction form
    839,323.80/1,260,297.90 = 485,029.80/x
  3. Step 3: Cross multiply
    839,323.80x = 1,260,297.90 × 485,029.80
  4. Step 4: Simplify right side
    839,323.80x = 611,282,038,377.42
  5. Step 5: Solve for x
    x = 611,282,038,377.42/839,323.80
  6. Step 6: Final answer
    x = 728,303.00

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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.