Home / 674,470.81-1,011,409.75-358,852.69

Finding the Fourth Proportional to 674,470.81, 1,011,409.75 and 358,852.69

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Solution

The fourth proportional to 674,470.81, 1,011,409.75 and 358,852.69 is: 538,121.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,470.81 : 1,011,409.75 = 358,852.69 : x
  2. Step 2: Convert to fraction form
    674,470.81/1,011,409.75 = 358,852.69/x
  3. Step 3: Cross multiply
    674,470.81x = 1,011,409.75 × 358,852.69
  4. Step 4: Simplify right side
    674,470.81x = 362,947,109,479.73
  5. Step 5: Solve for x
    x = 362,947,109,479.73/674,470.81
  6. Step 6: Final answer
    x = 538,121.30

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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.