Home / 1,315,620.20-1,973,430.30-318,348.20

Finding the Fourth Proportional to 1,315,620.20, 1,973,430.30 and 318,348.20

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Solution

The fourth proportional to 1,315,620.20, 1,973,430.30 and 318,348.20 is: 477,522.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,620.20 : 1,973,430.30 = 318,348.20 : x
  2. Step 2: Convert to fraction form
    1,315,620.20/1,973,430.30 = 318,348.20/x
  3. Step 3: Cross multiply
    1,315,620.20x = 1,973,430.30 × 318,348.20
  4. Step 4: Simplify right side
    1,315,620.20x = 628,237,983,830.46
  5. Step 5: Solve for x
    x = 628,237,983,830.46/1,315,620.20
  6. Step 6: Final answer
    x = 477,522.30

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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.