Home / 879,477.60-1,319,734.80-580,821.60

Finding the Fourth Proportional to 879,477.60, 1,319,734.80 and 580,821.60

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Solution

The fourth proportional to 879,477.60, 1,319,734.80 and 580,821.60 is: 871,574.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,477.60 : 1,319,734.80 = 580,821.60 : x
  2. Step 2: Convert to fraction form
    879,477.60/1,319,734.80 = 580,821.60/x
  3. Step 3: Cross multiply
    879,477.60x = 1,319,734.80 × 580,821.60
  4. Step 4: Simplify right side
    879,477.60x = 766,530,478,111.68
  5. Step 5: Solve for x
    x = 766,530,478,111.68/879,477.60
  6. Step 6: Final answer
    x = 871,574.76

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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.