Home / 1,178,318.52-1,767,831.48-420,061.32

Finding the Fourth Proportional to 1,178,318.52, 1,767,831.48 and 420,061.32

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Solution

The fourth proportional to 1,178,318.52, 1,767,831.48 and 420,061.32 is: 630,218.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,318.52 : 1,767,831.48 = 420,061.32 : x
  2. Step 2: Convert to fraction form
    1,178,318.52/1,767,831.48 = 420,061.32/x
  3. Step 3: Cross multiply
    1,178,318.52x = 1,767,831.48 × 420,061.32
  4. Step 4: Simplify right side
    1,178,318.52x = 742,597,625,026.35
  5. Step 5: Solve for x
    x = 742,597,625,026.35/1,178,318.52
  6. Step 6: Final answer
    x = 630,218.07

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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.