Home / 692,802.40-1,039,203.60-219,632.80

Finding the Fourth Proportional to 692,802.40, 1,039,203.60 and 219,632.80

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Solution

The fourth proportional to 692,802.40, 1,039,203.60 and 219,632.80 is: 329,449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,802.40 : 1,039,203.60 = 219,632.80 : x
  2. Step 2: Convert to fraction form
    692,802.40/1,039,203.60 = 219,632.80/x
  3. Step 3: Cross multiply
    692,802.40x = 1,039,203.60 × 219,632.80
  4. Step 4: Simplify right side
    692,802.40x = 228,243,196,438.08
  5. Step 5: Solve for x
    x = 228,243,196,438.08/692,802.40
  6. Step 6: Final answer
    x = 329,449.20

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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.