Home / 520,325.42-780,322.02-165,256.38

Finding the Fourth Proportional to 520,325.42, 780,322.02 and 165,256.38

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Solution

The fourth proportional to 520,325.42, 780,322.02 and 165,256.38 is: 247,831.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,325.42 : 780,322.02 = 165,256.38 : x
  2. Step 2: Convert to fraction form
    520,325.42/780,322.02 = 165,256.38/x
  3. Step 3: Cross multiply
    520,325.42x = 780,322.02 × 165,256.38
  4. Step 4: Simplify right side
    520,325.42x = 128,953,192,259.49
  5. Step 5: Solve for x
    x = 128,953,192,259.49/520,325.42
  6. Step 6: Final answer
    x = 247,831.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.