Home / 1,312,005.20-1,968,007.80-994,744.40

Finding the Fourth Proportional to 1,312,005.20, 1,968,007.80 and 994,744.40

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Solution

The fourth proportional to 1,312,005.20, 1,968,007.80 and 994,744.40 is: 1,492,116.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,005.20 : 1,968,007.80 = 994,744.40 : x
  2. Step 2: Convert to fraction form
    1,312,005.20/1,968,007.80 = 994,744.40/x
  3. Step 3: Cross multiply
    1,312,005.20x = 1,968,007.80 × 994,744.40
  4. Step 4: Simplify right side
    1,312,005.20x = 1,957,664,738,206.32
  5. Step 5: Solve for x
    x = 1,957,664,738,206.32/1,312,005.20
  6. Step 6: Final answer
    x = 1,492,116.60

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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.