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Finding the Fourth Proportional to 806,577.84, 1,210,614.03 and 407,499.84

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Solution

The fourth proportional to 806,577.84, 1,210,614.03 and 407,499.84 is: 611,627.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,577.84 : 1,210,614.03 = 407,499.84 : x
  2. Step 2: Convert to fraction form
    806,577.84/1,210,614.03 = 407,499.84/x
  3. Step 3: Cross multiply
    806,577.84x = 1,210,614.03 × 407,499.84
  4. Step 4: Simplify right side
    806,577.84x = 493,325,023,526.76
  5. Step 5: Solve for x
    x = 493,325,023,526.76/806,577.84
  6. Step 6: Final answer
    x = 611,627.30

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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.