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Finding the Fourth Proportional to 649,244.40, 973,405.80 and 249,730.80

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Solution

The fourth proportional to 649,244.40, 973,405.80 and 249,730.80 is: 374,418.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,244.40 : 973,405.80 = 249,730.80 : x
  2. Step 2: Convert to fraction form
    649,244.40/973,405.80 = 249,730.80/x
  3. Step 3: Cross multiply
    649,244.40x = 973,405.80 × 249,730.80
  4. Step 4: Simplify right side
    649,244.40x = 243,089,409,158.64
  5. Step 5: Solve for x
    x = 243,089,409,158.64/649,244.40
  6. Step 6: Final answer
    x = 374,418.95

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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.