Home / 1,159,471.20-1,739,206.80-318,021.60

Finding the Fourth Proportional to 1,159,471.20, 1,739,206.80 and 318,021.60

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Solution

The fourth proportional to 1,159,471.20, 1,739,206.80 and 318,021.60 is: 477,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,471.20 : 1,739,206.80 = 318,021.60 : x
  2. Step 2: Convert to fraction form
    1,159,471.20/1,739,206.80 = 318,021.60/x
  3. Step 3: Cross multiply
    1,159,471.20x = 1,739,206.80 × 318,021.60
  4. Step 4: Simplify right side
    1,159,471.20x = 553,105,329,266.88
  5. Step 5: Solve for x
    x = 553,105,329,266.88/1,159,471.20
  6. Step 6: Final answer
    x = 477,032.40

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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.