Home / 3,315,075.20-4,972,649.70-918,940.64

Finding the Fourth Proportional to 3,315,075.20, 4,972,649.70 and 918,940.64

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Solution

The fourth proportional to 3,315,075.20, 4,972,649.70 and 918,940.64 is: 1,378,421.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315,075.20 : 4,972,649.70 = 918,940.64 : x
  2. Step 2: Convert to fraction form
    3,315,075.20/4,972,649.70 = 918,940.64/x
  3. Step 3: Cross multiply
    3,315,075.20x = 4,972,649.70 × 918,940.64
  4. Step 4: Simplify right side
    3,315,075.20x = 4,569,569,897,813.81
  5. Step 5: Solve for x
    x = 4,569,569,897,813.81/3,315,075.20
  6. Step 6: Final answer
    x = 1,378,421.19

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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.