Home / 1,122,048.60-1,687,220.10-939,571.80

Finding the Fourth Proportional to 1,122,048.60, 1,687,220.10 and 939,571.80

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Solution

The fourth proportional to 1,122,048.60, 1,687,220.10 and 939,571.80 is: 1,412,830.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,048.60 : 1,687,220.10 = 939,571.80 : x
  2. Step 2: Convert to fraction form
    1,122,048.60/1,687,220.10 = 939,571.80/x
  3. Step 3: Cross multiply
    1,122,048.60x = 1,687,220.10 × 939,571.80
  4. Step 4: Simplify right side
    1,122,048.60x = 1,585,264,426,353.18
  5. Step 5: Solve for x
    x = 1,585,264,426,353.18/1,122,048.60
  6. Step 6: Final answer
    x = 1,412,830.45

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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.