Home / 790,152.78-1,185,417.63-257,674.44

Finding the Fourth Proportional to 790,152.78, 1,185,417.63 and 257,674.44

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Solution

The fourth proportional to 790,152.78, 1,185,417.63 and 257,674.44 is: 386,573.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,152.78 : 1,185,417.63 = 257,674.44 : x
  2. Step 2: Convert to fraction form
    790,152.78/1,185,417.63 = 257,674.44/x
  3. Step 3: Cross multiply
    790,152.78x = 1,185,417.63 × 257,674.44
  4. Step 4: Simplify right side
    790,152.78x = 305,451,823,976.38
  5. Step 5: Solve for x
    x = 305,451,823,976.38/790,152.78
  6. Step 6: Final answer
    x = 386,573.12

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Double scale
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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.