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Finding the Fourth Proportional to 507,220.50, 699,959.28 and 274,646.34

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Solution

The fourth proportional to 507,220.50, 699,959.28 and 274,646.34 is: 379,009.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,220.50 : 699,959.28 = 274,646.34 : x
  2. Step 2: Convert to fraction form
    507,220.50/699,959.28 = 274,646.34/x
  3. Step 3: Cross multiply
    507,220.50x = 699,959.28 × 274,646.34
  4. Step 4: Simplify right side
    507,220.50x = 192,241,254,401.04
  5. Step 5: Solve for x
    x = 192,241,254,401.04/507,220.50
  6. Step 6: Final answer
    x = 379,009.24

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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.