Home / 460,828.56-691,359.48-128,404.56

Finding the Fourth Proportional to 460,828.56, 691,359.48 and 128,404.56

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Solution

The fourth proportional to 460,828.56, 691,359.48 and 128,404.56 is: 192,639.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,828.56 : 691,359.48 = 128,404.56 : x
  2. Step 2: Convert to fraction form
    460,828.56/691,359.48 = 128,404.56/x
  3. Step 3: Cross multiply
    460,828.56x = 691,359.48 × 128,404.56
  4. Step 4: Simplify right side
    460,828.56x = 88,773,709,831.23
  5. Step 5: Solve for x
    x = 88,773,709,831.23/460,828.56
  6. Step 6: Final answer
    x = 192,639.34

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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.