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Finding the Fourth Proportional to 515,054.62, 710,762.26 and 285,608.26

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Solution

The fourth proportional to 515,054.62, 710,762.26 and 285,608.26 is: 394,132.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,054.62 : 710,762.26 = 285,608.26 : x
  2. Step 2: Convert to fraction form
    515,054.62/710,762.26 = 285,608.26/x
  3. Step 3: Cross multiply
    515,054.62x = 710,762.26 × 285,608.26
  4. Step 4: Simplify right side
    515,054.62x = 202,999,572,352.27
  5. Step 5: Solve for x
    x = 202,999,572,352.27/515,054.62
  6. Step 6: Final answer
    x = 394,132.13

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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.