Home / 929,672.40-1,395,430.20-456,891.60

Finding the Fourth Proportional to 929,672.40, 1,395,430.20 and 456,891.60

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Solution

The fourth proportional to 929,672.40, 1,395,430.20 and 456,891.60 is: 685,790.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,672.40 : 1,395,430.20 = 456,891.60 : x
  2. Step 2: Convert to fraction form
    929,672.40/1,395,430.20 = 456,891.60/x
  3. Step 3: Cross multiply
    929,672.40x = 1,395,430.20 × 456,891.60
  4. Step 4: Simplify right side
    929,672.40x = 637,560,336,766.32
  5. Step 5: Solve for x
    x = 637,560,336,766.32/929,672.40
  6. Step 6: Final answer
    x = 685,790.32

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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.