Home / 1,186,045.23-1,636,743.15-642,181.41

Finding the Fourth Proportional to 1,186,045.23, 1,636,743.15 and 642,181.41

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Solution

The fourth proportional to 1,186,045.23, 1,636,743.15 and 642,181.41 is: 886,210.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,045.23 : 1,636,743.15 = 642,181.41 : x
  2. Step 2: Convert to fraction form
    1,186,045.23/1,636,743.15 = 642,181.41/x
  3. Step 3: Cross multiply
    1,186,045.23x = 1,636,743.15 × 642,181.41
  4. Step 4: Simplify right side
    1,186,045.23x = 1,051,086,023,874.84
  5. Step 5: Solve for x
    x = 1,051,086,023,874.84/1,186,045.23
  6. Step 6: Final answer
    x = 886,210.74

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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.