Home / 811,001.37-1,119,136.67-448,403.46

Finding the Fourth Proportional to 811,001.37, 1,119,136.67 and 448,403.46

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Solution

The fourth proportional to 811,001.37, 1,119,136.67 and 448,403.46 is: 618,771.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,001.37 : 1,119,136.67 = 448,403.46 : x
  2. Step 2: Convert to fraction form
    811,001.37/1,119,136.67 = 448,403.46/x
  3. Step 3: Cross multiply
    811,001.37x = 1,119,136.67 × 448,403.46
  4. Step 4: Simplify right side
    811,001.37x = 501,824,750,283.61
  5. Step 5: Solve for x
    x = 501,824,750,283.61/811,001.37
  6. Step 6: Final answer
    x = 618,771.76

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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.