Home / 1,815,685.40-2,723,916.90-553,640.60

Finding the Fourth Proportional to 1,815,685.40, 2,723,916.90 and 553,640.60

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Solution

The fourth proportional to 1,815,685.40, 2,723,916.90 and 553,640.60 is: 830,579.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,685.40 : 2,723,916.90 = 553,640.60 : x
  2. Step 2: Convert to fraction form
    1,815,685.40/2,723,916.90 = 553,640.60/x
  3. Step 3: Cross multiply
    1,815,685.40x = 2,723,916.90 × 553,640.60
  4. Step 4: Simplify right side
    1,815,685.40x = 1,508,070,986,866.14
  5. Step 5: Solve for x
    x = 1,508,070,986,866.14/1,815,685.40
  6. Step 6: Final answer
    x = 830,579.45

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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.