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Finding the Fourth Proportional to 670,841.80, 1,007,040.30 and 404,902.60

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Solution

The fourth proportional to 670,841.80, 1,007,040.30 and 404,902.60 is: 607,823.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,841.80 : 1,007,040.30 = 404,902.60 : x
  2. Step 2: Convert to fraction form
    670,841.80/1,007,040.30 = 404,902.60/x
  3. Step 3: Cross multiply
    670,841.80x = 1,007,040.30 × 404,902.60
  4. Step 4: Simplify right side
    670,841.80x = 407,753,235,774.78
  5. Step 5: Solve for x
    x = 407,753,235,774.78/670,841.80
  6. Step 6: Final answer
    x = 607,823.24

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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.