Home / 810,402.58-1,118,422.90-447,897.22

Finding the Fourth Proportional to 810,402.58, 1,118,422.90 and 447,897.22

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Solution

The fourth proportional to 810,402.58, 1,118,422.90 and 447,897.22 is: 618,135.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,402.58 : 1,118,422.90 = 447,897.22 : x
  2. Step 2: Convert to fraction form
    810,402.58/1,118,422.90 = 447,897.22/x
  3. Step 3: Cross multiply
    810,402.58x = 1,118,422.90 × 447,897.22
  4. Step 4: Simplify right side
    810,402.58x = 500,938,507,694.34
  5. Step 5: Solve for x
    x = 500,938,507,694.34/810,402.58
  6. Step 6: Final answer
    x = 618,135.38

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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.