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Finding the Fourth Proportional to 478,728.84, 717,482.70 and 254,196.84

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Solution

The fourth proportional to 478,728.84, 717,482.70 and 254,196.84 is: 380,971.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,728.84 : 717,482.70 = 254,196.84 : x
  2. Step 2: Convert to fraction form
    478,728.84/717,482.70 = 254,196.84/x
  3. Step 3: Cross multiply
    478,728.84x = 717,482.70 × 254,196.84
  4. Step 4: Simplify right side
    478,728.84x = 182,381,835,094.67
  5. Step 5: Solve for x
    x = 182,381,835,094.67/478,728.84
  6. Step 6: Final answer
    x = 380,971.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.