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Finding the Fourth Proportional to 614,258.74, 921,389.48 and 276,907.21

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Solution

The fourth proportional to 614,258.74, 921,389.48 and 276,907.21 is: 415,361.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,258.74 : 921,389.48 = 276,907.21 : x
  2. Step 2: Convert to fraction form
    614,258.74/921,389.48 = 276,907.21/x
  3. Step 3: Cross multiply
    614,258.74x = 921,389.48 × 276,907.21
  4. Step 4: Simplify right side
    614,258.74x = 255,139,387,580.54
  5. Step 5: Solve for x
    x = 255,139,387,580.54/614,258.74
  6. Step 6: Final answer
    x = 415,361.43

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1.5x scale

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.