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Finding the Fourth Proportional to 506,955.54, 699,599.26 and 315,968.76

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Solution

The fourth proportional to 506,955.54, 699,599.26 and 315,968.76 is: 436,037.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,955.54 : 699,599.26 = 315,968.76 : x
  2. Step 2: Convert to fraction form
    506,955.54/699,599.26 = 315,968.76/x
  3. Step 3: Cross multiply
    506,955.54x = 699,599.26 × 315,968.76
  4. Step 4: Simplify right side
    506,955.54x = 221,051,510,679.12
  5. Step 5: Solve for x
    x = 221,051,510,679.12/506,955.54
  6. Step 6: Final answer
    x = 436,037.27

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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.