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Finding the Fourth Proportional to 671,004.80, 926,012.10 and 384,580.16

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Solution

The fourth proportional to 671,004.80, 926,012.10 and 384,580.16 is: 530,735.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,004.80 : 926,012.10 = 384,580.16 : x
  2. Step 2: Convert to fraction form
    671,004.80/926,012.10 = 384,580.16/x
  3. Step 3: Cross multiply
    671,004.80x = 926,012.10 × 384,580.16
  4. Step 4: Simplify right side
    671,004.80x = 356,125,881,579.94
  5. Step 5: Solve for x
    x = 356,125,881,579.94/671,004.80
  6. Step 6: Final answer
    x = 530,735.22

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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.