Home / 1,223,219.40-1,835,047.80-513,319.20

Finding the Fourth Proportional to 1,223,219.40, 1,835,047.80 and 513,319.20

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Solution

The fourth proportional to 1,223,219.40, 1,835,047.80 and 513,319.20 is: 770,070.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,219.40 : 1,835,047.80 = 513,319.20 : x
  2. Step 2: Convert to fraction form
    1,223,219.40/1,835,047.80 = 513,319.20/x
  3. Step 3: Cross multiply
    1,223,219.40x = 1,835,047.80 × 513,319.20
  4. Step 4: Simplify right side
    1,223,219.40x = 941,965,268,657.76
  5. Step 5: Solve for x
    x = 941,965,268,657.76/1,223,219.40
  6. Step 6: Final answer
    x = 770,070.58

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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.