Home / 747,072.28-1,114,781.69-666,556.77

Finding the Fourth Proportional to 747,072.28, 1,114,781.69 and 666,556.77

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Solution

The fourth proportional to 747,072.28, 1,114,781.69 and 666,556.77 is: 994,636.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,072.28 : 1,114,781.69 = 666,556.77 : x
  2. Step 2: Convert to fraction form
    747,072.28/1,114,781.69 = 666,556.77/x
  3. Step 3: Cross multiply
    747,072.28x = 1,114,781.69 × 666,556.77
  4. Step 4: Simplify right side
    747,072.28x = 743,065,279,208.76
  5. Step 5: Solve for x
    x = 743,065,279,208.76/747,072.28
  6. Step 6: Final answer
    x = 994,636.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.