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Finding the Fourth Proportional to 506,485.84, 699,165.66 and 315,593.56

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Solution

The fourth proportional to 506,485.84, 699,165.66 and 315,593.56 is: 435,653.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,485.84 : 699,165.66 = 315,593.56 : x
  2. Step 2: Convert to fraction form
    506,485.84/699,165.66 = 315,593.56/x
  3. Step 3: Cross multiply
    506,485.84x = 699,165.66 × 315,593.56
  4. Step 4: Simplify right side
    506,485.84x = 220,652,179,669.15
  5. Step 5: Solve for x
    x = 220,652,179,669.15/506,485.84
  6. Step 6: Final answer
    x = 435,653.21

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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.