Home / 810,703.49-1,118,770.45-448,127.51

Finding the Fourth Proportional to 810,703.49, 1,118,770.45 and 448,127.51

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Solution

The fourth proportional to 810,703.49, 1,118,770.45 and 448,127.51 is: 618,415.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,703.49 : 1,118,770.45 = 448,127.51 : x
  2. Step 2: Convert to fraction form
    810,703.49/1,118,770.45 = 448,127.51/x
  3. Step 3: Cross multiply
    810,703.49x = 1,118,770.45 × 448,127.51
  4. Step 4: Simplify right side
    810,703.49x = 501,351,809,305.91
  5. Step 5: Solve for x
    x = 501,351,809,305.91/810,703.49
  6. Step 6: Final answer
    x = 618,415.76

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Double scale
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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.