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Finding the Fourth Proportional to 478,244.07, 716,994.27 and 309,407.67

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Solution

The fourth proportional to 478,244.07, 716,994.27 and 309,407.67 is: 463,870.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,244.07 : 716,994.27 = 309,407.67 : x
  2. Step 2: Convert to fraction form
    478,244.07/716,994.27 = 309,407.67/x
  3. Step 3: Cross multiply
    478,244.07x = 716,994.27 × 309,407.67
  4. Step 4: Simplify right side
    478,244.07x = 221,843,526,484.05
  5. Step 5: Solve for x
    x = 221,843,526,484.05/478,244.07
  6. Step 6: Final answer
    x = 463,870.94

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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.