Home / 745,161.54-1,116,862.20-318,572.64

Finding the Fourth Proportional to 745,161.54, 1,116,862.20 and 318,572.64

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Solution

The fourth proportional to 745,161.54, 1,116,862.20 and 318,572.64 is: 477,482.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,161.54 : 1,116,862.20 = 318,572.64 : x
  2. Step 2: Convert to fraction form
    745,161.54/1,116,862.20 = 318,572.64/x
  3. Step 3: Cross multiply
    745,161.54x = 1,116,862.20 × 318,572.64
  4. Step 4: Simplify right side
    745,161.54x = 355,801,739,570.21
  5. Step 5: Solve for x
    x = 355,801,739,570.21/745,161.54
  6. Step 6: Final answer
    x = 477,482.69

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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.