Home / 1,186,047.90-1,636,748.64-642,190.14

Finding the Fourth Proportional to 1,186,047.90, 1,636,748.64 and 642,190.14

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Solution

The fourth proportional to 1,186,047.90, 1,636,748.64 and 642,190.14 is: 886,223.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,047.90 : 1,636,748.64 = 642,190.14 : x
  2. Step 2: Convert to fraction form
    1,186,047.90/1,636,748.64 = 642,190.14/x
  3. Step 3: Cross multiply
    1,186,047.90x = 1,636,748.64 × 642,190.14
  4. Step 4: Simplify right side
    1,186,047.90x = 1,051,103,838,266.41
  5. Step 5: Solve for x
    x = 1,051,103,838,266.41/1,186,047.90
  6. Step 6: Final answer
    x = 886,223.77

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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.