Home / 1,078,315.40-1,617,818.70-723,729.80

Finding the Fourth Proportional to 1,078,315.40, 1,617,818.70 and 723,729.80

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Solution

The fourth proportional to 1,078,315.40, 1,617,818.70 and 723,729.80 is: 1,085,826.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,315.40 : 1,617,818.70 = 723,729.80 : x
  2. Step 2: Convert to fraction form
    1,078,315.40/1,617,818.70 = 723,729.80/x
  3. Step 3: Cross multiply
    1,078,315.40x = 1,617,818.70 × 723,729.80
  4. Step 4: Simplify right side
    1,078,315.40x = 1,170,863,604,187.26
  5. Step 5: Solve for x
    x = 1,170,863,604,187.26/1,078,315.40
  6. Step 6: Final answer
    x = 1,085,826.66

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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.