Home / 755,449.57-1,042,526.69-411,287.86

Finding the Fourth Proportional to 755,449.57, 1,042,526.69 and 411,287.86

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Solution

The fourth proportional to 755,449.57, 1,042,526.69 and 411,287.86 is: 567,580.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,449.57 : 1,042,526.69 = 411,287.86 : x
  2. Step 2: Convert to fraction form
    755,449.57/1,042,526.69 = 411,287.86/x
  3. Step 3: Cross multiply
    755,449.57x = 1,042,526.69 × 411,287.86
  4. Step 4: Simplify right side
    755,449.57x = 428,778,571,322.98
  5. Step 5: Solve for x
    x = 428,778,571,322.98/755,449.57
  6. Step 6: Final answer
    x = 567,580.67

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1.5x scale

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.