Home / 771,119.28-1,064,144.48-431,587.52

Finding the Fourth Proportional to 771,119.28, 1,064,144.48 and 431,587.52

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Solution

The fourth proportional to 771,119.28, 1,064,144.48 and 431,587.52 is: 595,590.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,119.28 : 1,064,144.48 = 431,587.52 : x
  2. Step 2: Convert to fraction form
    771,119.28/1,064,144.48 = 431,587.52/x
  3. Step 3: Cross multiply
    771,119.28x = 1,064,144.48 × 431,587.52
  4. Step 4: Simplify right side
    771,119.28x = 459,271,477,044.89
  5. Step 5: Solve for x
    x = 459,271,477,044.89/771,119.28
  6. Step 6: Final answer
    x = 595,590.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.