Home / 1,287,942.02-1,931,850.68-489,161.23

Finding the Fourth Proportional to 1,287,942.02, 1,931,850.68 and 489,161.23

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Solution

The fourth proportional to 1,287,942.02, 1,931,850.68 and 489,161.23 is: 733,718.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,942.02 : 1,931,850.68 = 489,161.23 : x
  2. Step 2: Convert to fraction form
    1,287,942.02/1,931,850.68 = 489,161.23/x
  3. Step 3: Cross multiply
    1,287,942.02x = 1,931,850.68 × 489,161.23
  4. Step 4: Simplify right side
    1,287,942.02x = 944,986,446,368.79
  5. Step 5: Solve for x
    x = 944,986,446,368.79/1,287,942.02
  6. Step 6: Final answer
    x = 733,718.16

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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.