Home / 807,703.80-1,114,638.78-445,140.48

Finding the Fourth Proportional to 807,703.80, 1,114,638.78 and 445,140.48

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Solution

The fourth proportional to 807,703.80, 1,114,638.78 and 445,140.48 is: 614,298.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,703.80 : 1,114,638.78 = 445,140.48 : x
  2. Step 2: Convert to fraction form
    807,703.80/1,114,638.78 = 445,140.48/x
  3. Step 3: Cross multiply
    807,703.80x = 1,114,638.78 × 445,140.48
  4. Step 4: Simplify right side
    807,703.80x = 496,170,841,555.81
  5. Step 5: Solve for x
    x = 496,170,841,555.81/807,703.80
  6. Step 6: Final answer
    x = 614,298.02

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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.