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Finding the Fourth Proportional to 622,860.64, 859,547.72 and 336,380.76

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Solution

The fourth proportional to 622,860.64, 859,547.72 and 336,380.76 is: 464,205.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,860.64 : 859,547.72 = 336,380.76 : x
  2. Step 2: Convert to fraction form
    622,860.64/859,547.72 = 336,380.76/x
  3. Step 3: Cross multiply
    622,860.64x = 859,547.72 × 336,380.76
  4. Step 4: Simplify right side
    622,860.64x = 289,135,315,309.87
  5. Step 5: Solve for x
    x = 289,135,315,309.87/622,860.64
  6. Step 6: Final answer
    x = 464,205.47

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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.