Home / 389,119.76-583,635.88-104,831.32

Finding the Fourth Proportional to 389,119.76, 583,635.88 and 104,831.32

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Solution

The fourth proportional to 389,119.76, 583,635.88 and 104,831.32 is: 157,235.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,119.76 : 583,635.88 = 104,831.32 : x
  2. Step 2: Convert to fraction form
    389,119.76/583,635.88 = 104,831.32/x
  3. Step 3: Cross multiply
    389,119.76x = 583,635.88 × 104,831.32
  4. Step 4: Simplify right side
    389,119.76x = 61,183,319,699.76
  5. Step 5: Solve for x
    x = 61,183,319,699.76/389,119.76
  6. Step 6: Final answer
    x = 157,235.19

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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.