Home / 1,287,774.84-1,776,769.20-804,830.58

Finding the Fourth Proportional to 1,287,774.84, 1,776,769.20 and 804,830.58

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Solution

The fourth proportional to 1,287,774.84, 1,776,769.20 and 804,830.58 is: 1,110,441.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,774.84 : 1,776,769.20 = 804,830.58 : x
  2. Step 2: Convert to fraction form
    1,287,774.84/1,776,769.20 = 804,830.58/x
  3. Step 3: Cross multiply
    1,287,774.84x = 1,776,769.20 × 804,830.58
  4. Step 4: Simplify right side
    1,287,774.84x = 1,429,998,185,762.14
  5. Step 5: Solve for x
    x = 1,429,998,185,762.14/1,287,774.84
  6. Step 6: Final answer
    x = 1,110,441.16

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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.