Home / 777,627.54-1,073,148.75-455,307.48

Finding the Fourth Proportional to 777,627.54, 1,073,148.75 and 455,307.48

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Solution

The fourth proportional to 777,627.54, 1,073,148.75 and 455,307.48 is: 628,337.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,627.54 : 1,073,148.75 = 455,307.48 : x
  2. Step 2: Convert to fraction form
    777,627.54/1,073,148.75 = 455,307.48/x
  3. Step 3: Cross multiply
    777,627.54x = 1,073,148.75 × 455,307.48
  4. Step 4: Simplify right side
    777,627.54x = 488,612,653,027.65
  5. Step 5: Solve for x
    x = 488,612,653,027.65/777,627.54
  6. Step 6: Final answer
    x = 628,337.64

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1.5x scale

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.