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Finding the Fourth Proportional to 404,210.80, 606,316.20 and 371,405.80

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Solution

The fourth proportional to 404,210.80, 606,316.20 and 371,405.80 is: 557,108.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,210.80 : 606,316.20 = 371,405.80 : x
  2. Step 2: Convert to fraction form
    404,210.80/606,316.20 = 371,405.80/x
  3. Step 3: Cross multiply
    404,210.80x = 606,316.20 × 371,405.80
  4. Step 4: Simplify right side
    404,210.80x = 225,189,353,313.96
  5. Step 5: Solve for x
    x = 225,189,353,313.96/404,210.80
  6. Step 6: Final answer
    x = 557,108.70

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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.