Home / 740,078.66-1,021,308.52-400,546.91

Finding the Fourth Proportional to 740,078.66, 1,021,308.52 and 400,546.91

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Solution

The fourth proportional to 740,078.66, 1,021,308.52 and 400,546.91 is: 552,754.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,078.66 : 1,021,308.52 = 400,546.91 : x
  2. Step 2: Convert to fraction form
    740,078.66/1,021,308.52 = 400,546.91/x
  3. Step 3: Cross multiply
    740,078.66x = 1,021,308.52 × 400,546.91
  4. Step 4: Simplify right side
    740,078.66x = 409,081,971,842.67
  5. Step 5: Solve for x
    x = 409,081,971,842.67/740,078.66
  6. Step 6: Final answer
    x = 552,754.72

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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.