Home / 847,413.32-1,169,145.78-479,840.36

Finding the Fourth Proportional to 847,413.32, 1,169,145.78 and 479,840.36

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Solution

The fourth proportional to 847,413.32, 1,169,145.78 and 479,840.36 is: 662,018.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,413.32 : 1,169,145.78 = 479,840.36 : x
  2. Step 2: Convert to fraction form
    847,413.32/1,169,145.78 = 479,840.36/x
  3. Step 3: Cross multiply
    847,413.32x = 1,169,145.78 × 479,840.36
  4. Step 4: Simplify right side
    847,413.32x = 561,003,331,967.68
  5. Step 5: Solve for x
    x = 561,003,331,967.68/847,413.32
  6. Step 6: Final answer
    x = 662,018.54

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1.5x scale

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.