Home / 478,823.76-660,781.26-263,971.53

Finding the Fourth Proportional to 478,823.76, 660,781.26 and 263,971.53

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Solution

The fourth proportional to 478,823.76, 660,781.26 and 263,971.53 is: 364,283.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,823.76 : 660,781.26 = 263,971.53 : x
  2. Step 2: Convert to fraction form
    478,823.76/660,781.26 = 263,971.53/x
  3. Step 3: Cross multiply
    478,823.76x = 660,781.26 × 263,971.53
  4. Step 4: Simplify right side
    478,823.76x = 174,427,440,197.53
  5. Step 5: Solve for x
    x = 174,427,440,197.53/478,823.76
  6. Step 6: Final answer
    x = 364,283.18

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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.