Home / 1,223,430.80-1,835,802.30-513,530.60

Finding the Fourth Proportional to 1,223,430.80, 1,835,802.30 and 513,530.60

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Solution

The fourth proportional to 1,223,430.80, 1,835,802.30 and 513,530.60 is: 770,571.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,430.80 : 1,835,802.30 = 513,530.60 : x
  2. Step 2: Convert to fraction form
    1,223,430.80/1,835,802.30 = 513,530.60/x
  3. Step 3: Cross multiply
    1,223,430.80x = 1,835,802.30 × 513,530.60
  4. Step 4: Simplify right side
    1,223,430.80x = 942,740,656,600.38
  5. Step 5: Solve for x
    x = 942,740,656,600.38/1,223,430.80
  6. Step 6: Final answer
    x = 770,571.30

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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.