Home / 874,836.53-1,312,254.82-209,988.53

Finding the Fourth Proportional to 874,836.53, 1,312,254.82 and 209,988.53

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Solution

The fourth proportional to 874,836.53, 1,312,254.82 and 209,988.53 is: 314,982.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,836.53 : 1,312,254.82 = 209,988.53 : x
  2. Step 2: Convert to fraction form
    874,836.53/1,312,254.82 = 209,988.53/x
  3. Step 3: Cross multiply
    874,836.53x = 1,312,254.82 × 209,988.53
  4. Step 4: Simplify right side
    874,836.53x = 275,558,460,637.22
  5. Step 5: Solve for x
    x = 275,558,460,637.22/874,836.53
  6. Step 6: Final answer
    x = 314,982.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.