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Finding the Fourth Proportional to 649,259.40, 973,428.30 and 249,745.80

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Solution

The fourth proportional to 649,259.40, 973,428.30 and 249,745.80 is: 374,441.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,259.40 : 973,428.30 = 249,745.80 : x
  2. Step 2: Convert to fraction form
    649,259.40/973,428.30 = 249,745.80/x
  3. Step 3: Cross multiply
    649,259.40x = 973,428.30 × 249,745.80
  4. Step 4: Simplify right side
    649,259.40x = 243,109,629,526.14
  5. Step 5: Solve for x
    x = 243,109,629,526.14/649,259.40
  6. Step 6: Final answer
    x = 374,441.45

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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.