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Finding the Fourth Proportional to 427,298.92, 589,607 and 245,975.81

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Solution

The fourth proportional to 427,298.92, 589,607 and 245,975.81 is: 339,408.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,298.92 : 589,607 = 245,975.81 : x
  2. Step 2: Convert to fraction form
    427,298.92/589,607 = 245,975.81/x
  3. Step 3: Cross multiply
    427,298.92x = 589,607 × 245,975.81
  4. Step 4: Simplify right side
    427,298.92x = 145,029,059,406.67
  5. Step 5: Solve for x
    x = 145,029,059,406.67/427,298.92
  6. Step 6: Final answer
    x = 339,408.91

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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.