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Finding the Fourth Proportional to 453,985.20, 680,977.80 and 404,218.80

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Solution

The fourth proportional to 453,985.20, 680,977.80 and 404,218.80 is: 606,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,985.20 : 680,977.80 = 404,218.80 : x
  2. Step 2: Convert to fraction form
    453,985.20/680,977.80 = 404,218.80/x
  3. Step 3: Cross multiply
    453,985.20x = 680,977.80 × 404,218.80
  4. Step 4: Simplify right side
    453,985.20x = 275,264,029,142.64
  5. Step 5: Solve for x
    x = 275,264,029,142.64/453,985.20
  6. Step 6: Final answer
    x = 606,328.20

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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.