Home / 1,029,345.12-1,420,499.60-570,467.20

Finding the Fourth Proportional to 1,029,345.12, 1,420,499.60 and 570,467.20

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Solution

The fourth proportional to 1,029,345.12, 1,420,499.60 and 570,467.20 is: 787,246.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,345.12 : 1,420,499.60 = 570,467.20 : x
  2. Step 2: Convert to fraction form
    1,029,345.12/1,420,499.60 = 570,467.20/x
  3. Step 3: Cross multiply
    1,029,345.12x = 1,420,499.60 × 570,467.20
  4. Step 4: Simplify right side
    1,029,345.12x = 810,348,429,413.12
  5. Step 5: Solve for x
    x = 810,348,429,413.12/1,029,345.12
  6. Step 6: Final answer
    x = 787,246.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.