Home / 810,401.08-1,118,420.82-447,895.70

Finding the Fourth Proportional to 810,401.08, 1,118,420.82 and 447,895.70

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Solution

The fourth proportional to 810,401.08, 1,118,420.82 and 447,895.70 is: 618,133.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,401.08 : 1,118,420.82 = 447,895.70 : x
  2. Step 2: Convert to fraction form
    810,401.08/1,118,420.82 = 447,895.70/x
  3. Step 3: Cross multiply
    810,401.08x = 1,118,420.82 × 447,895.70
  4. Step 4: Simplify right side
    810,401.08x = 500,935,876,068.47
  5. Step 5: Solve for x
    x = 500,935,876,068.47/810,401.08
  6. Step 6: Final answer
    x = 618,133.28

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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.