Home / 515,215.02-710,961.12-285,750.66

Finding the Fourth Proportional to 515,215.02, 710,961.12 and 285,750.66

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Solution

The fourth proportional to 515,215.02, 710,961.12 and 285,750.66 is: 394,316.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,215.02 : 710,961.12 = 285,750.66 : x
  2. Step 2: Convert to fraction form
    515,215.02/710,961.12 = 285,750.66/x
  3. Step 3: Cross multiply
    515,215.02x = 710,961.12 × 285,750.66
  4. Step 4: Simplify right side
    515,215.02x = 203,157,609,274.34
  5. Step 5: Solve for x
    x = 203,157,609,274.34/515,215.02
  6. Step 6: Final answer
    x = 394,316.16

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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.