Home / 830,434.67-1,145,999.82-448,461.41

Finding the Fourth Proportional to 830,434.67, 1,145,999.82 and 448,461.41

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Solution

The fourth proportional to 830,434.67, 1,145,999.82 and 448,461.41 is: 618,876.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,434.67 : 1,145,999.82 = 448,461.41 : x
  2. Step 2: Convert to fraction form
    830,434.67/1,145,999.82 = 448,461.41/x
  3. Step 3: Cross multiply
    830,434.67x = 1,145,999.82 × 448,461.41
  4. Step 4: Simplify right side
    830,434.67x = 513,936,695,136.95
  5. Step 5: Solve for x
    x = 513,936,695,136.95/830,434.67
  6. Step 6: Final answer
    x = 618,876.73

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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.