Home / 989,745.80-1,365,865.08-537,036.80

Finding the Fourth Proportional to 989,745.80, 1,365,865.08 and 537,036.80

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Solution

The fourth proportional to 989,745.80, 1,365,865.08 and 537,036.80 is: 741,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,745.80 : 1,365,865.08 = 537,036.80 : x
  2. Step 2: Convert to fraction form
    989,745.80/1,365,865.08 = 537,036.80/x
  3. Step 3: Cross multiply
    989,745.80x = 1,365,865.08 × 537,036.80
  4. Step 4: Simplify right side
    989,745.80x = 733,519,811,794.94
  5. Step 5: Solve for x
    x = 733,519,811,794.94/989,745.80
  6. Step 6: Final answer
    x = 741,119.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.