Home / 346,831.56-478,485.90-274,923

Finding the Fourth Proportional to 346,831.56, 478,485.90 and 274,923

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Solution

The fourth proportional to 346,831.56, 478,485.90 and 274,923 is: 379,281.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,831.56 : 478,485.90 = 274,923 : x
  2. Step 2: Convert to fraction form
    346,831.56/478,485.90 = 274,923/x
  3. Step 3: Cross multiply
    346,831.56x = 478,485.90 × 274,923
  4. Step 4: Simplify right side
    346,831.56x = 131,546,779,085.70
  5. Step 5: Solve for x
    x = 131,546,779,085.70/346,831.56
  6. Step 6: Final answer
    x = 379,281.46

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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.