Home / 1,087,618.20-1,628,201.70-808,373.40

Finding the Fourth Proportional to 1,087,618.20, 1,628,201.70 and 808,373.40

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Solution

The fourth proportional to 1,087,618.20, 1,628,201.70 and 808,373.40 is: 1,210,162.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,618.20 : 1,628,201.70 = 808,373.40 : x
  2. Step 2: Convert to fraction form
    1,087,618.20/1,628,201.70 = 808,373.40/x
  3. Step 3: Cross multiply
    1,087,618.20x = 1,628,201.70 × 808,373.40
  4. Step 4: Simplify right side
    1,087,618.20x = 1,316,194,944,114.78
  5. Step 5: Solve for x
    x = 1,316,194,944,114.78/1,087,618.20
  6. Step 6: Final answer
    x = 1,210,162.67

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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.