Home / 753,438.36-1,039,740.66-413,899.32

Finding the Fourth Proportional to 753,438.36, 1,039,740.66 and 413,899.32

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Solution

The fourth proportional to 753,438.36, 1,039,740.66 and 413,899.32 is: 571,178.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,438.36 : 1,039,740.66 = 413,899.32 : x
  2. Step 2: Convert to fraction form
    753,438.36/1,039,740.66 = 413,899.32/x
  3. Step 3: Cross multiply
    753,438.36x = 1,039,740.66 × 413,899.32
  4. Step 4: Simplify right side
    753,438.36x = 430,347,952,150.35
  5. Step 5: Solve for x
    x = 430,347,952,150.35/753,438.36
  6. Step 6: Final answer
    x = 571,178.71

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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.