Home / 1,072,320.95-1,479,432.89-685,362.89

Finding the Fourth Proportional to 1,072,320.95, 1,479,432.89 and 685,362.89

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Solution

The fourth proportional to 1,072,320.95, 1,479,432.89 and 685,362.89 is: 945,564.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,320.95 : 1,479,432.89 = 685,362.89 : x
  2. Step 2: Convert to fraction form
    1,072,320.95/1,479,432.89 = 685,362.89/x
  3. Step 3: Cross multiply
    1,072,320.95x = 1,479,432.89 × 685,362.89
  4. Step 4: Simplify right side
    1,072,320.95x = 1,013,948,406,463.44
  5. Step 5: Solve for x
    x = 1,013,948,406,463.44/1,072,320.95
  6. Step 6: Final answer
    x = 945,564.30

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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.