Home / 820,750.14-1,130,127.92-743,768.48

Finding the Fourth Proportional to 820,750.14, 1,130,127.92 and 743,768.48

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Solution

The fourth proportional to 820,750.14, 1,130,127.92 and 743,768.48 is: 1,024,128.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,750.14 : 1,130,127.92 = 743,768.48 : x
  2. Step 2: Convert to fraction form
    820,750.14/1,130,127.92 = 743,768.48/x
  3. Step 3: Cross multiply
    820,750.14x = 1,130,127.92 × 743,768.48
  4. Step 4: Simplify right side
    820,750.14x = 840,553,515,894.48
  5. Step 5: Solve for x
    x = 840,553,515,894.48/820,750.14
  6. Step 6: Final answer
    x = 1,024,128.39

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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.