Home / 628,970.78-942,668.53-495,323.21

Finding the Fourth Proportional to 628,970.78, 942,668.53 and 495,323.21

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Solution

The fourth proportional to 628,970.78, 942,668.53 and 495,323.21 is: 742,364.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,970.78 : 942,668.53 = 495,323.21 : x
  2. Step 2: Convert to fraction form
    628,970.78/942,668.53 = 495,323.21/x
  3. Step 3: Cross multiply
    628,970.78x = 942,668.53 × 495,323.21
  4. Step 4: Simplify right side
    628,970.78x = 466,925,602,245.58
  5. Step 5: Solve for x
    x = 466,925,602,245.58/628,970.78
  6. Step 6: Final answer
    x = 742,364.54

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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.