Home / 427,014.47-589,219.76-243,257.87

Finding the Fourth Proportional to 427,014.47, 589,219.76 and 243,257.87

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Solution

The fourth proportional to 427,014.47, 589,219.76 and 243,257.87 is: 335,661.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,014.47 : 589,219.76 = 243,257.87 : x
  2. Step 2: Convert to fraction form
    427,014.47/589,219.76 = 243,257.87/x
  3. Step 3: Cross multiply
    427,014.47x = 589,219.76 × 243,257.87
  4. Step 4: Simplify right side
    427,014.47x = 143,332,343,779.51
  5. Step 5: Solve for x
    x = 143,332,343,779.51/427,014.47
  6. Step 6: Final answer
    x = 335,661.56

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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.