Home / 921,931.74-1,383,100.70-282,240.32

Finding the Fourth Proportional to 921,931.74, 1,383,100.70 and 282,240.32

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Solution

The fourth proportional to 921,931.74, 1,383,100.70 and 282,240.32 is: 423,422.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,931.74 : 1,383,100.70 = 282,240.32 : x
  2. Step 2: Convert to fraction form
    921,931.74/1,383,100.70 = 282,240.32/x
  3. Step 3: Cross multiply
    921,931.74x = 1,383,100.70 × 282,240.32
  4. Step 4: Simplify right side
    921,931.74x = 390,366,775,833.52
  5. Step 5: Solve for x
    x = 390,366,775,833.52/921,931.74
  6. Step 6: Final answer
    x = 423,422.64

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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.