Home / 1,528,137.09-2,109,475.71-1,031,529.33

Finding the Fourth Proportional to 1,528,137.09, 2,109,475.71 and 1,031,529.33

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Solution

The fourth proportional to 1,528,137.09, 2,109,475.71 and 1,031,529.33 is: 1,423,946.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,137.09 : 2,109,475.71 = 1,031,529.33 : x
  2. Step 2: Convert to fraction form
    1,528,137.09/2,109,475.71 = 1,031,529.33/x
  3. Step 3: Cross multiply
    1,528,137.09x = 2,109,475.71 × 1,031,529.33
  4. Step 4: Simplify right side
    1,528,137.09x = 2,175,986,065,787.57
  5. Step 5: Solve for x
    x = 2,175,986,065,787.57/1,528,137.09
  6. Step 6: Final answer
    x = 1,423,946.90

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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.