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Finding the Fourth Proportional to 851,559.68, 1,175,136 and 469,621.76

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Solution

The fourth proportional to 851,559.68, 1,175,136 and 469,621.76 is: 648,069.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,559.68 : 1,175,136 = 469,621.76 : x
  2. Step 2: Convert to fraction form
    851,559.68/1,175,136 = 469,621.76/x
  3. Step 3: Cross multiply
    851,559.68x = 1,175,136 × 469,621.76
  4. Step 4: Simplify right side
    851,559.68x = 551,869,436,559.36
  5. Step 5: Solve for x
    x = 551,869,436,559.36/851,559.68
  6. Step 6: Final answer
    x = 648,069.01

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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.