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Finding the Fourth Proportional to 489,880.76, 734,487.06 and 249,403.64

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Solution

The fourth proportional to 489,880.76, 734,487.06 and 249,403.64 is: 373,935.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,880.76 : 734,487.06 = 249,403.64 : x
  2. Step 2: Convert to fraction form
    489,880.76/734,487.06 = 249,403.64/x
  3. Step 3: Cross multiply
    489,880.76x = 734,487.06 × 249,403.64
  4. Step 4: Simplify right side
    489,880.76x = 183,183,746,296.90
  5. Step 5: Solve for x
    x = 183,183,746,296.90/489,880.76
  6. Step 6: Final answer
    x = 373,935.38

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1.5x scale

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.