Home / 1,154,971.78-1,593,815.33-638,692.16

Finding the Fourth Proportional to 1,154,971.78, 1,593,815.33 and 638,692.16

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Solution

The fourth proportional to 1,154,971.78, 1,593,815.33 and 638,692.16 is: 881,369.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154,971.78 : 1,593,815.33 = 638,692.16 : x
  2. Step 2: Convert to fraction form
    1,154,971.78/1,593,815.33 = 638,692.16/x
  3. Step 3: Cross multiply
    1,154,971.78x = 1,593,815.33 × 638,692.16
  4. Step 4: Simplify right side
    1,154,971.78x = 1,017,957,349,386.47
  5. Step 5: Solve for x
    x = 1,017,957,349,386.47/1,154,971.78
  6. Step 6: Final answer
    x = 881,369.89

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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.