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Finding the Fourth Proportional to 713,945.44, 985,171.71 and 427,458.16

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Solution

The fourth proportional to 713,945.44, 985,171.71 and 427,458.16 is: 589,848.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,945.44 : 985,171.71 = 427,458.16 : x
  2. Step 2: Convert to fraction form
    713,945.44/985,171.71 = 427,458.16/x
  3. Step 3: Cross multiply
    713,945.44x = 985,171.71 × 427,458.16
  4. Step 4: Simplify right side
    713,945.44x = 421,119,686,440.65
  5. Step 5: Solve for x
    x = 421,119,686,440.65/713,945.44
  6. Step 6: Final answer
    x = 589,848.56

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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.