Home / 829,622.80-1,243,051.80-779,856.40

Finding the Fourth Proportional to 829,622.80, 1,243,051.80 and 779,856.40

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Solution

The fourth proportional to 829,622.80, 1,243,051.80 and 779,856.40 is: 1,168,485.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,622.80 : 1,243,051.80 = 779,856.40 : x
  2. Step 2: Convert to fraction form
    829,622.80/1,243,051.80 = 779,856.40/x
  3. Step 3: Cross multiply
    829,622.80x = 1,243,051.80 × 779,856.40
  4. Step 4: Simplify right side
    829,622.80x = 969,401,901,761.52
  5. Step 5: Solve for x
    x = 969,401,901,761.52/829,622.80
  6. Step 6: Final answer
    x = 1,168,485.13

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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.