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Finding the Fourth Proportional to 453,406.20, 680,109.30 and 404,417.40

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Solution

The fourth proportional to 453,406.20, 680,109.30 and 404,417.40 is: 606,626.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,406.20 : 680,109.30 = 404,417.40 : x
  2. Step 2: Convert to fraction form
    453,406.20/680,109.30 = 404,417.40/x
  3. Step 3: Cross multiply
    453,406.20x = 680,109.30 × 404,417.40
  4. Step 4: Simplify right side
    453,406.20x = 275,048,034,821.82
  5. Step 5: Solve for x
    x = 275,048,034,821.82/453,406.20
  6. Step 6: Final answer
    x = 606,626.10

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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.