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Finding the Fourth Proportional to 478,482.46, 660,401.44 and 274,671.18

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Solution

The fourth proportional to 478,482.46, 660,401.44 and 274,671.18 is: 379,101.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,482.46 : 660,401.44 = 274,671.18 : x
  2. Step 2: Convert to fraction form
    478,482.46/660,401.44 = 274,671.18/x
  3. Step 3: Cross multiply
    478,482.46x = 660,401.44 × 274,671.18
  4. Step 4: Simplify right side
    478,482.46x = 181,393,242,798.50
  5. Step 5: Solve for x
    x = 181,393,242,798.50/478,482.46
  6. Step 6: Final answer
    x = 379,101.13

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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.