Home / 500,047.20-689,893.56-285,032.16

Finding the Fourth Proportional to 500,047.20, 689,893.56 and 285,032.16

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Solution

The fourth proportional to 500,047.20, 689,893.56 and 285,032.16 is: 393,246.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,047.20 : 689,893.56 = 285,032.16 : x
  2. Step 2: Convert to fraction form
    500,047.20/689,893.56 = 285,032.16/x
  3. Step 3: Cross multiply
    500,047.20x = 689,893.56 × 285,032.16
  4. Step 4: Simplify right side
    500,047.20x = 196,641,851,576.89
  5. Step 5: Solve for x
    x = 196,641,851,576.89/500,047.20
  6. Step 6: Final answer
    x = 393,246.58

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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.