Home / 1,021,951.81-1,533,583.81-685,372.51

Finding the Fourth Proportional to 1,021,951.81, 1,533,583.81 and 685,372.51

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Solution

The fourth proportional to 1,021,951.81, 1,533,583.81 and 685,372.51 is: 1,028,498.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,951.81 : 1,533,583.81 = 685,372.51 : x
  2. Step 2: Convert to fraction form
    1,021,951.81/1,533,583.81 = 685,372.51/x
  3. Step 3: Cross multiply
    1,021,951.81x = 1,533,583.81 × 685,372.51
  4. Step 4: Simplify right side
    1,021,951.81x = 1,051,076,175,773.71
  5. Step 5: Solve for x
    x = 1,051,076,175,773.71/1,021,951.81
  6. Step 6: Final answer
    x = 1,028,498.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.