Home / 1,103,247.49-1,654,887.84-420,172.10

Finding the Fourth Proportional to 1,103,247.49, 1,654,887.84 and 420,172.10

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Solution

The fourth proportional to 1,103,247.49, 1,654,887.84 and 420,172.10 is: 630,264.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103,247.49 : 1,654,887.84 = 420,172.10 : x
  2. Step 2: Convert to fraction form
    1,103,247.49/1,654,887.84 = 420,172.10/x
  3. Step 3: Cross multiply
    1,103,247.49x = 1,654,887.84 × 420,172.10
  4. Step 4: Simplify right side
    1,103,247.49x = 695,337,698,997.26
  5. Step 5: Solve for x
    x = 695,337,698,997.26/1,103,247.49
  6. Step 6: Final answer
    x = 630,264.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.