Home / 928,021.60-1,392,032.40-571,880.80

Finding the Fourth Proportional to 928,021.60, 1,392,032.40 and 571,880.80

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Solution

The fourth proportional to 928,021.60, 1,392,032.40 and 571,880.80 is: 857,821.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,021.60 : 1,392,032.40 = 571,880.80 : x
  2. Step 2: Convert to fraction form
    928,021.60/1,392,032.40 = 571,880.80/x
  3. Step 3: Cross multiply
    928,021.60x = 1,392,032.40 × 571,880.80
  4. Step 4: Simplify right side
    928,021.60x = 796,076,602,537.92
  5. Step 5: Solve for x
    x = 796,076,602,537.92/928,021.60
  6. Step 6: Final answer
    x = 857,821.20

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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.