Home / 790,425.81-1,185,852.55-285,042.91

Finding the Fourth Proportional to 790,425.81, 1,185,852.55 and 285,042.91

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Solution

The fourth proportional to 790,425.81, 1,185,852.55 and 285,042.91 is: 427,641.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,425.81 : 1,185,852.55 = 285,042.91 : x
  2. Step 2: Convert to fraction form
    790,425.81/1,185,852.55 = 285,042.91/x
  3. Step 3: Cross multiply
    790,425.81x = 1,185,852.55 × 285,042.91
  4. Step 4: Simplify right side
    790,425.81x = 338,018,861,682.92
  5. Step 5: Solve for x
    x = 338,018,861,682.92/790,425.81
  6. Step 6: Final answer
    x = 427,641.48

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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.