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Finding the Fourth Proportional to 713,793.06, 985,116.71 and 427,313.10

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Solution

The fourth proportional to 713,793.06, 985,116.71 and 427,313.10 is: 589,741.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,793.06 : 985,116.71 = 427,313.10 : x
  2. Step 2: Convert to fraction form
    713,793.06/985,116.71 = 427,313.10/x
  3. Step 3: Cross multiply
    713,793.06x = 985,116.71 × 427,313.10
  4. Step 4: Simplify right side
    713,793.06x = 420,953,275,211.90
  5. Step 5: Solve for x
    x = 420,953,275,211.90/713,793.06
  6. Step 6: Final answer
    x = 589,741.34

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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.