Home / 853,531.88-1,177,873.09-490,946.42

Finding the Fourth Proportional to 853,531.88, 1,177,873.09 and 490,946.42

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Solution

The fourth proportional to 853,531.88, 1,177,873.09 and 490,946.42 is: 677,505.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,531.88 : 1,177,873.09 = 490,946.42 : x
  2. Step 2: Convert to fraction form
    853,531.88/1,177,873.09 = 490,946.42/x
  3. Step 3: Cross multiply
    853,531.88x = 1,177,873.09 × 490,946.42
  4. Step 4: Simplify right side
    853,531.88x = 578,272,574,603.19
  5. Step 5: Solve for x
    x = 578,272,574,603.19/853,531.88
  6. Step 6: Final answer
    x = 677,505.54

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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.