Home / 879,138.60-1,319,291.10-500,058.60

Finding the Fourth Proportional to 879,138.60, 1,319,291.10 and 500,058.60

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Solution

The fourth proportional to 879,138.60, 1,319,291.10 and 500,058.60 is: 750,419.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,138.60 : 1,319,291.10 = 500,058.60 : x
  2. Step 2: Convert to fraction form
    879,138.60/1,319,291.10 = 500,058.60/x
  3. Step 3: Cross multiply
    879,138.60x = 1,319,291.10 × 500,058.60
  4. Step 4: Simplify right side
    879,138.60x = 659,722,860,458.46
  5. Step 5: Solve for x
    x = 659,722,860,458.46/879,138.60
  6. Step 6: Final answer
    x = 750,419.63

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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.