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Finding the Fourth Proportional to 613,444.66, 846,534.40 and 355,326.65

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Solution

The fourth proportional to 613,444.66, 846,534.40 and 355,326.65 is: 490,339.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,444.66 : 846,534.40 = 355,326.65 : x
  2. Step 2: Convert to fraction form
    613,444.66/846,534.40 = 355,326.65/x
  3. Step 3: Cross multiply
    613,444.66x = 846,534.40 × 355,326.65
  4. Step 4: Simplify right side
    613,444.66x = 300,796,230,515.28
  5. Step 5: Solve for x
    x = 300,796,230,515.28/613,444.66
  6. Step 6: Final answer
    x = 490,339.64

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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.