Home / 550,329.12-759,462.30-320,880.24

Finding the Fourth Proportional to 550,329.12, 759,462.30 and 320,880.24

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Solution

The fourth proportional to 550,329.12, 759,462.30 and 320,880.24 is: 442,819.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,329.12 : 759,462.30 = 320,880.24 : x
  2. Step 2: Convert to fraction form
    550,329.12/759,462.30 = 320,880.24/x
  3. Step 3: Cross multiply
    550,329.12x = 759,462.30 × 320,880.24
  4. Step 4: Simplify right side
    550,329.12x = 243,696,445,094.95
  5. Step 5: Solve for x
    x = 243,696,445,094.95/550,329.12
  6. Step 6: Final answer
    x = 442,819.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.