Home / 769,647.07-1,148,834.14-678,746.23

Finding the Fourth Proportional to 769,647.07, 1,148,834.14 and 678,746.23

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Solution

The fourth proportional to 769,647.07, 1,148,834.14 and 678,746.23 is: 1,013,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,647.07 : 1,148,834.14 = 678,746.23 : x
  2. Step 2: Convert to fraction form
    769,647.07/1,148,834.14 = 678,746.23/x
  3. Step 3: Cross multiply
    769,647.07x = 1,148,834.14 × 678,746.23
  4. Step 4: Simplify right side
    769,647.07x = 779,766,843,313.53
  5. Step 5: Solve for x
    x = 779,766,843,313.53/769,647.07
  6. Step 6: Final answer
    x = 1,013,148.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.