Home / 478,837.40-660,795.66-274,901.54

Finding the Fourth Proportional to 478,837.40, 660,795.66 and 274,901.54

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Solution

The fourth proportional to 478,837.40, 660,795.66 and 274,901.54 is: 379,364.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,837.40 : 660,795.66 = 274,901.54 : x
  2. Step 2: Convert to fraction form
    478,837.40/660,795.66 = 274,901.54/x
  3. Step 3: Cross multiply
    478,837.40x = 660,795.66 × 274,901.54
  4. Step 4: Simplify right side
    478,837.40x = 181,653,741,255.34
  5. Step 5: Solve for x
    x = 181,653,741,255.34/478,837.40
  6. Step 6: Final answer
    x = 379,364.15

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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.