Home / 850,542.60-1,274,064.30-430,055.40

Finding the Fourth Proportional to 850,542.60, 1,274,064.30 and 430,055.40

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Solution

The fourth proportional to 850,542.60, 1,274,064.30 and 430,055.40 is: 644,198.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,542.60 : 1,274,064.30 = 430,055.40 : x
  2. Step 2: Convert to fraction form
    850,542.60/1,274,064.30 = 430,055.40/x
  3. Step 3: Cross multiply
    850,542.60x = 1,274,064.30 × 430,055.40
  4. Step 4: Simplify right side
    850,542.60x = 547,918,232,162.22
  5. Step 5: Solve for x
    x = 547,918,232,162.22/850,542.60
  6. Step 6: Final answer
    x = 644,198.46

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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.