Home / 447,026.20-616,887.38-243,075.40

Finding the Fourth Proportional to 447,026.20, 616,887.38 and 243,075.40

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Solution

The fourth proportional to 447,026.20, 616,887.38 and 243,075.40 is: 335,439.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,026.20 : 616,887.38 = 243,075.40 : x
  2. Step 2: Convert to fraction form
    447,026.20/616,887.38 = 243,075.40/x
  3. Step 3: Cross multiply
    447,026.20x = 616,887.38 × 243,075.40
  4. Step 4: Simplify right side
    447,026.20x = 149,950,146,648.45
  5. Step 5: Solve for x
    x = 149,950,146,648.45/447,026.20
  6. Step 6: Final answer
    x = 335,439.28

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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.