Home / 990,812.46-1,367,329.23-538,106.70

Finding the Fourth Proportional to 990,812.46, 1,367,329.23 and 538,106.70

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Solution

The fourth proportional to 990,812.46, 1,367,329.23 and 538,106.70 is: 742,591.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,812.46 : 1,367,329.23 = 538,106.70 : x
  2. Step 2: Convert to fraction form
    990,812.46/1,367,329.23 = 538,106.70/x
  3. Step 3: Cross multiply
    990,812.46x = 1,367,329.23 × 538,106.70
  4. Step 4: Simplify right side
    990,812.46x = 735,769,019,768.84
  5. Step 5: Solve for x
    x = 735,769,019,768.84/990,812.46
  6. Step 6: Final answer
    x = 742,591.61

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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.