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Finding the Fourth Proportional to 478,677.04, 660,600.30 and 274,726.33

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Solution

The fourth proportional to 478,677.04, 660,600.30 and 274,726.33 is: 379,137.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,677.04 : 660,600.30 = 274,726.33 : x
  2. Step 2: Convert to fraction form
    478,677.04/660,600.30 = 274,726.33/x
  3. Step 3: Cross multiply
    478,677.04x = 660,600.30 × 274,726.33
  4. Step 4: Simplify right side
    478,677.04x = 181,484,296,015.90
  5. Step 5: Solve for x
    x = 181,484,296,015.90/478,677.04
  6. Step 6: Final answer
    x = 379,137.25

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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.