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Finding the Fourth Proportional to 501,513.60, 692,089.60 and 275,160.72

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Solution

The fourth proportional to 501,513.60, 692,089.60 and 275,160.72 is: 379,722.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,513.60 : 692,089.60 = 275,160.72 : x
  2. Step 2: Convert to fraction form
    501,513.60/692,089.60 = 275,160.72/x
  3. Step 3: Cross multiply
    501,513.60x = 692,089.60 × 275,160.72
  4. Step 4: Simplify right side
    501,513.60x = 190,435,872,640.51
  5. Step 5: Solve for x
    x = 190,435,872,640.51/501,513.60
  6. Step 6: Final answer
    x = 379,722.25

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1.5x scale

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.