Home / 661,867.61-992,899.82-306,917.51

Finding the Fourth Proportional to 661,867.61, 992,899.82 and 306,917.51

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Solution

The fourth proportional to 661,867.61, 992,899.82 and 306,917.51 is: 460,421.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,867.61 : 992,899.82 = 306,917.51 : x
  2. Step 2: Convert to fraction form
    661,867.61/992,899.82 = 306,917.51/x
  3. Step 3: Cross multiply
    661,867.61x = 992,899.82 × 306,917.51
  4. Step 4: Simplify right side
    661,867.61x = 304,738,336,236.64
  5. Step 5: Solve for x
    x = 304,738,336,236.64/661,867.61
  6. Step 6: Final answer
    x = 460,421.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.