Home / 1,069,280.16-1,603,906.39-259,671.21

Finding the Fourth Proportional to 1,069,280.16, 1,603,906.39 and 259,671.21

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Solution

The fourth proportional to 1,069,280.16, 1,603,906.39 and 259,671.21 is: 389,503.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,280.16 : 1,603,906.39 = 259,671.21 : x
  2. Step 2: Convert to fraction form
    1,069,280.16/1,603,906.39 = 259,671.21/x
  3. Step 3: Cross multiply
    1,069,280.16x = 1,603,906.39 × 259,671.21
  4. Step 4: Simplify right side
    1,069,280.16x = 416,488,316,349.95
  5. Step 5: Solve for x
    x = 416,488,316,349.95/1,069,280.16
  6. Step 6: Final answer
    x = 389,503.46

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Double scale
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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.