Home / 1,384,220.40-2,075,941.80-437,881.20

Finding the Fourth Proportional to 1,384,220.40, 2,075,941.80 and 437,881.20

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Solution

The fourth proportional to 1,384,220.40, 2,075,941.80 and 437,881.20 is: 656,698.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,220.40 : 2,075,941.80 = 437,881.20 : x
  2. Step 2: Convert to fraction form
    1,384,220.40/2,075,941.80 = 437,881.20/x
  3. Step 3: Cross multiply
    1,384,220.40x = 2,075,941.80 × 437,881.20
  4. Step 4: Simplify right side
    1,384,220.40x = 909,015,886,514.16
  5. Step 5: Solve for x
    x = 909,015,886,514.16/1,384,220.40
  6. Step 6: Final answer
    x = 656,698.81

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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.