Home / 688,724.16-1,033,145.76-190,088.16

Finding the Fourth Proportional to 688,724.16, 1,033,145.76 and 190,088.16

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Solution

The fourth proportional to 688,724.16, 1,033,145.76 and 190,088.16 is: 285,148.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,724.16 : 1,033,145.76 = 190,088.16 : x
  2. Step 2: Convert to fraction form
    688,724.16/1,033,145.76 = 190,088.16/x
  3. Step 3: Cross multiply
    688,724.16x = 1,033,145.76 × 190,088.16
  4. Step 4: Simplify right side
    688,724.16x = 196,388,776,530.20
  5. Step 5: Solve for x
    x = 196,388,776,530.20/688,724.16
  6. Step 6: Final answer
    x = 285,148.67

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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.