Home / 1,186,087.88-1,636,798.84-642,223.50

Finding the Fourth Proportional to 1,186,087.88, 1,636,798.84 and 642,223.50

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Solution

The fourth proportional to 1,186,087.88, 1,636,798.84 and 642,223.50 is: 886,267.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,087.88 : 1,636,798.84 = 642,223.50 : x
  2. Step 2: Convert to fraction form
    1,186,087.88/1,636,798.84 = 642,223.50/x
  3. Step 3: Cross multiply
    1,186,087.88x = 1,636,798.84 × 642,223.50
  4. Step 4: Simplify right side
    1,186,087.88x = 1,051,190,678,215.18
  5. Step 5: Solve for x
    x = 1,051,190,678,215.18/1,186,087.88
  6. Step 6: Final answer
    x = 886,267.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.