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Finding the Fourth Proportional to 407,994.08, 607,890.42 and 385,075.23

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Solution

The fourth proportional to 407,994.08, 607,890.42 and 385,075.23 is: 573,742.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,994.08 : 607,890.42 = 385,075.23 : x
  2. Step 2: Convert to fraction form
    407,994.08/607,890.42 = 385,075.23/x
  3. Step 3: Cross multiply
    407,994.08x = 607,890.42 × 385,075.23
  4. Step 4: Simplify right side
    407,994.08x = 234,083,543,296.30
  5. Step 5: Solve for x
    x = 234,083,543,296.30/407,994.08
  6. Step 6: Final answer
    x = 573,742.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.