Home / 550,338.09-758,438.19-429,287.64

Finding the Fourth Proportional to 550,338.09, 758,438.19 and 429,287.64

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Solution

The fourth proportional to 550,338.09, 758,438.19 and 429,287.64 is: 591,614.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,338.09 : 758,438.19 = 429,287.64 : x
  2. Step 2: Convert to fraction form
    550,338.09/758,438.19 = 429,287.64/x
  3. Step 3: Cross multiply
    550,338.09x = 758,438.19 × 429,287.64
  4. Step 4: Simplify right side
    550,338.09x = 325,588,140,670.97
  5. Step 5: Solve for x
    x = 325,588,140,670.97/550,338.09
  6. Step 6: Final answer
    x = 591,614.77

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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.