Home / 810,881.42-1,118,968.15-448,283.56

Finding the Fourth Proportional to 810,881.42, 1,118,968.15 and 448,283.56

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Solution

The fourth proportional to 810,881.42, 1,118,968.15 and 448,283.56 is: 618,604.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,881.42 : 1,118,968.15 = 448,283.56 : x
  2. Step 2: Convert to fraction form
    810,881.42/1,118,968.15 = 448,283.56/x
  3. Step 3: Cross multiply
    810,881.42x = 1,118,968.15 × 448,283.56
  4. Step 4: Simplify right side
    810,881.42x = 501,615,025,808.61
  5. Step 5: Solve for x
    x = 501,615,025,808.61/810,881.42
  6. Step 6: Final answer
    x = 618,604.66

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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.