Home / 1,019,638.47-1,528,563.47-388,132.23

Finding the Fourth Proportional to 1,019,638.47, 1,528,563.47 and 388,132.23

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Solution

The fourth proportional to 1,019,638.47, 1,528,563.47 and 388,132.23 is: 581,857.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,638.47 : 1,528,563.47 = 388,132.23 : x
  2. Step 2: Convert to fraction form
    1,019,638.47/1,528,563.47 = 388,132.23/x
  3. Step 3: Cross multiply
    1,019,638.47x = 1,528,563.47 × 388,132.23
  4. Step 4: Simplify right side
    1,019,638.47x = 593,284,746,366.98
  5. Step 5: Solve for x
    x = 593,284,746,366.98/1,019,638.47
  6. Step 6: Final answer
    x = 581,857.95

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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.