Home / 879,272.80-1,319,346.60-346,811.20

Finding the Fourth Proportional to 879,272.80, 1,319,346.60 and 346,811.20

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Solution

The fourth proportional to 879,272.80, 1,319,346.60 and 346,811.20 is: 520,389.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,272.80 : 1,319,346.60 = 346,811.20 : x
  2. Step 2: Convert to fraction form
    879,272.80/1,319,346.60 = 346,811.20/x
  3. Step 3: Cross multiply
    879,272.80x = 1,319,346.60 × 346,811.20
  4. Step 4: Simplify right side
    879,272.80x = 457,564,177,561.92
  5. Step 5: Solve for x
    x = 457,564,177,561.92/879,272.80
  6. Step 6: Final answer
    x = 520,389.32

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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.