Home / 1,384,218.40-2,075,938.80-437,879.20

Finding the Fourth Proportional to 1,384,218.40, 2,075,938.80 and 437,879.20

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Solution

The fourth proportional to 1,384,218.40, 2,075,938.80 and 437,879.20 is: 656,695.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,218.40 : 2,075,938.80 = 437,879.20 : x
  2. Step 2: Convert to fraction form
    1,384,218.40/2,075,938.80 = 437,879.20/x
  3. Step 3: Cross multiply
    1,384,218.40x = 2,075,938.80 × 437,879.20
  4. Step 4: Simplify right side
    1,384,218.40x = 909,010,420,992.96
  5. Step 5: Solve for x
    x = 909,010,420,992.96/1,384,218.40
  6. Step 6: Final answer
    x = 656,695.81

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1.5x scale

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.