Home / 771,113.29-1,064,136.21-431,581.54

Finding the Fourth Proportional to 771,113.29, 1,064,136.21 and 431,581.54

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Solution

The fourth proportional to 771,113.29, 1,064,136.21 and 431,581.54 is: 595,582.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,113.29 : 1,064,136.21 = 431,581.54 : x
  2. Step 2: Convert to fraction form
    771,113.29/1,064,136.21 = 431,581.54/x
  3. Step 3: Cross multiply
    771,113.29x = 1,064,136.21 × 431,581.54
  4. Step 4: Simplify right side
    771,113.29x = 459,261,544,281.56
  5. Step 5: Solve for x
    x = 459,261,544,281.56/771,113.29
  6. Step 6: Final answer
    x = 595,582.45

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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.