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Finding the Fourth Proportional to 571,040.80, 855,639.60 and 360,301.60

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Solution

The fourth proportional to 571,040.80, 855,639.60 and 360,301.60 is: 539,870.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,040.80 : 855,639.60 = 360,301.60 : x
  2. Step 2: Convert to fraction form
    571,040.80/855,639.60 = 360,301.60/x
  3. Step 3: Cross multiply
    571,040.80x = 855,639.60 × 360,301.60
  4. Step 4: Simplify right side
    571,040.80x = 308,288,316,903.36
  5. Step 5: Solve for x
    x = 308,288,316,903.36/571,040.80
  6. Step 6: Final answer
    x = 539,870.91

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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.