Home / 810,996.86-1,119,130.48-448,398.94

Finding the Fourth Proportional to 810,996.86, 1,119,130.48 and 448,398.94

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Solution

The fourth proportional to 810,996.86, 1,119,130.48 and 448,398.94 is: 618,765.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,996.86 : 1,119,130.48 = 448,398.94 : x
  2. Step 2: Convert to fraction form
    810,996.86/1,119,130.48 = 448,398.94/x
  3. Step 3: Cross multiply
    810,996.86x = 1,119,130.48 × 448,398.94
  4. Step 4: Simplify right side
    810,996.86x = 501,816,918,292.49
  5. Step 5: Solve for x
    x = 501,816,918,292.49/810,996.86
  6. Step 6: Final answer
    x = 618,765.55

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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.