Home / 821,576.08-1,133,567.76-481,978.72

Finding the Fourth Proportional to 821,576.08, 1,133,567.76 and 481,978.72

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Solution

The fourth proportional to 821,576.08, 1,133,567.76 and 481,978.72 is: 665,009.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,576.08 : 1,133,567.76 = 481,978.72 : x
  2. Step 2: Convert to fraction form
    821,576.08/1,133,567.76 = 481,978.72/x
  3. Step 3: Cross multiply
    821,576.08x = 1,133,567.76 × 481,978.72
  4. Step 4: Simplify right side
    821,576.08x = 546,355,537,998.07
  5. Step 5: Solve for x
    x = 546,355,537,998.07/821,576.08
  6. Step 6: Final answer
    x = 665,009.06

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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.