Home / 1,087,069.80-1,630,604.70-768,205.20

Finding the Fourth Proportional to 1,087,069.80, 1,630,604.70 and 768,205.20

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Solution

The fourth proportional to 1,087,069.80, 1,630,604.70 and 768,205.20 is: 1,152,307.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,069.80 : 1,630,604.70 = 768,205.20 : x
  2. Step 2: Convert to fraction form
    1,087,069.80/1,630,604.70 = 768,205.20/x
  3. Step 3: Cross multiply
    1,087,069.80x = 1,630,604.70 × 768,205.20
  4. Step 4: Simplify right side
    1,087,069.80x = 1,252,639,009,684.44
  5. Step 5: Solve for x
    x = 1,252,639,009,684.44/1,087,069.80
  6. Step 6: Final answer
    x = 1,152,307.80

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1.5x scale

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.