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Finding the Fourth Proportional to 506,955.53, 699,599.25 and 315,968.75

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Solution

The fourth proportional to 506,955.53, 699,599.25 and 315,968.75 is: 436,037.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,955.53 : 699,599.25 = 315,968.75 : x
  2. Step 2: Convert to fraction form
    506,955.53/699,599.25 = 315,968.75/x
  3. Step 3: Cross multiply
    506,955.53x = 699,599.25 × 315,968.75
  4. Step 4: Simplify right side
    506,955.53x = 221,051,500,523.44
  5. Step 5: Solve for x
    x = 221,051,500,523.44/506,955.53
  6. Step 6: Final answer
    x = 436,037.26

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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.