Home / 740,292.55-1,021,604.06-400,760.80

Finding the Fourth Proportional to 740,292.55, 1,021,604.06 and 400,760.80

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Solution

The fourth proportional to 740,292.55, 1,021,604.06 and 400,760.80 is: 553,050.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,292.55 : 1,021,604.06 = 400,760.80 : x
  2. Step 2: Convert to fraction form
    740,292.55/1,021,604.06 = 400,760.80/x
  3. Step 3: Cross multiply
    740,292.55x = 1,021,604.06 × 400,760.80
  4. Step 4: Simplify right side
    740,292.55x = 409,418,858,816.74
  5. Step 5: Solve for x
    x = 409,418,858,816.74/740,292.55
  6. Step 6: Final answer
    x = 553,050.09

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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.