Home / 1,134,007.80-1,698,678.90-779,422.20

Finding the Fourth Proportional to 1,134,007.80, 1,698,678.90 and 779,422.20

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Solution

The fourth proportional to 1,134,007.80, 1,698,678.90 and 779,422.20 is: 1,167,529.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134,007.80 : 1,698,678.90 = 779,422.20 : x
  2. Step 2: Convert to fraction form
    1,134,007.80/1,698,678.90 = 779,422.20/x
  3. Step 3: Cross multiply
    1,134,007.80x = 1,698,678.90 × 779,422.20
  4. Step 4: Simplify right side
    1,134,007.80x = 1,323,988,045,331.58
  5. Step 5: Solve for x
    x = 1,323,988,045,331.58/1,134,007.80
  6. Step 6: Final answer
    x = 1,167,529.93

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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.