Home / 990,179.61-1,485,031.23-457,188.27

Finding the Fourth Proportional to 990,179.61, 1,485,031.23 and 457,188.27

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Solution

The fourth proportional to 990,179.61, 1,485,031.23 and 457,188.27 is: 685,672.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,179.61 : 1,485,031.23 = 457,188.27 : x
  2. Step 2: Convert to fraction form
    990,179.61/1,485,031.23 = 457,188.27/x
  3. Step 3: Cross multiply
    990,179.61x = 1,485,031.23 × 457,188.27
  4. Step 4: Simplify right side
    990,179.61x = 678,938,858,939.67
  5. Step 5: Solve for x
    x = 678,938,858,939.67/990,179.61
  6. Step 6: Final answer
    x = 685,672.43

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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.