Home / 887,128.80-1,328,943.60-531,085.20

Finding the Fourth Proportional to 887,128.80, 1,328,943.60 and 531,085.20

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Solution

The fourth proportional to 887,128.80, 1,328,943.60 and 531,085.20 is: 795,580.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,128.80 : 1,328,943.60 = 531,085.20 : x
  2. Step 2: Convert to fraction form
    887,128.80/1,328,943.60 = 531,085.20/x
  3. Step 3: Cross multiply
    887,128.80x = 1,328,943.60 × 531,085.20
  4. Step 4: Simplify right side
    887,128.80x = 705,782,277,594.72
  5. Step 5: Solve for x
    x = 705,782,277,594.72/887,128.80
  6. Step 6: Final answer
    x = 795,580.39

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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.