Home / 1,087,245.70-1,627,642.95-808,000.90

Finding the Fourth Proportional to 1,087,245.70, 1,627,642.95 and 808,000.90

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Solution

The fourth proportional to 1,087,245.70, 1,627,642.95 and 808,000.90 is: 1,209,604.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,245.70 : 1,627,642.95 = 808,000.90 : x
  2. Step 2: Convert to fraction form
    1,087,245.70/1,627,642.95 = 808,000.90/x
  3. Step 3: Cross multiply
    1,087,245.70x = 1,627,642.95 × 808,000.90
  4. Step 4: Simplify right side
    1,087,245.70x = 1,315,136,968,478.66
  5. Step 5: Solve for x
    x = 1,315,136,968,478.66/1,087,245.70
  6. Step 6: Final answer
    x = 1,209,604.20

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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.