Home / 790,428.63-1,185,831.54-257,950.65

Finding the Fourth Proportional to 790,428.63, 1,185,831.54 and 257,950.65

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Solution

The fourth proportional to 790,428.63, 1,185,831.54 and 257,950.65 is: 386,987.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,428.63 : 1,185,831.54 = 257,950.65 : x
  2. Step 2: Convert to fraction form
    790,428.63/1,185,831.54 = 257,950.65/x
  3. Step 3: Cross multiply
    790,428.63x = 1,185,831.54 × 257,950.65
  4. Step 4: Simplify right side
    790,428.63x = 305,886,016,533.50
  5. Step 5: Solve for x
    x = 305,886,016,533.50/790,428.63
  6. Step 6: Final answer
    x = 386,987.52

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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.