Home / 485,087.40-727,458.30-169,554.60

Finding the Fourth Proportional to 485,087.40, 727,458.30 and 169,554.60

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Solution

The fourth proportional to 485,087.40, 727,458.30 and 169,554.60 is: 254,271.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,087.40 : 727,458.30 = 169,554.60 : x
  2. Step 2: Convert to fraction form
    485,087.40/727,458.30 = 169,554.60/x
  3. Step 3: Cross multiply
    485,087.40x = 727,458.30 × 169,554.60
  4. Step 4: Simplify right side
    485,087.40x = 123,343,901,073.18
  5. Step 5: Solve for x
    x = 123,343,901,073.18/485,087.40
  6. Step 6: Final answer
    x = 254,271.50

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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.