Home / 780,666.30-1,077,321.24-436,514.67

Finding the Fourth Proportional to 780,666.30, 1,077,321.24 and 436,514.67

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Solution

The fourth proportional to 780,666.30, 1,077,321.24 and 436,514.67 is: 602,391.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,666.30 : 1,077,321.24 = 436,514.67 : x
  2. Step 2: Convert to fraction form
    780,666.30/1,077,321.24 = 436,514.67/x
  3. Step 3: Cross multiply
    780,666.30x = 1,077,321.24 × 436,514.67
  4. Step 4: Simplify right side
    780,666.30x = 470,266,525,562.59
  5. Step 5: Solve for x
    x = 470,266,525,562.59/780,666.30
  6. Step 6: Final answer
    x = 602,391.22

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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.