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Finding the Fourth Proportional to 450,005.92, 620,985.36 and 248,763.04

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Solution

The fourth proportional to 450,005.92, 620,985.36 and 248,763.04 is: 343,280.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,005.92 : 620,985.36 = 248,763.04 : x
  2. Step 2: Convert to fraction form
    450,005.92/620,985.36 = 248,763.04/x
  3. Step 3: Cross multiply
    450,005.92x = 620,985.36 × 248,763.04
  4. Step 4: Simplify right side
    450,005.92x = 154,478,205,949.09
  5. Step 5: Solve for x
    x = 154,478,205,949.09/450,005.92
  6. Step 6: Final answer
    x = 343,280.39

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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.