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Finding the Fourth Proportional to 608,530.78, 912,602.01 and 209,075.26

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Solution

The fourth proportional to 608,530.78, 912,602.01 and 209,075.26 is: 313,546.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,530.78 : 912,602.01 = 209,075.26 : x
  2. Step 2: Convert to fraction form
    608,530.78/912,602.01 = 209,075.26/x
  3. Step 3: Cross multiply
    608,530.78x = 912,602.01 × 209,075.26
  4. Step 4: Simplify right side
    608,530.78x = 190,802,502,517.27
  5. Step 5: Solve for x
    x = 190,802,502,517.27/608,530.78
  6. Step 6: Final answer
    x = 313,546.18

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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.