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Finding the Fourth Proportional to 485,280.60, 727,920.90 and 249,084.60

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Solution

The fourth proportional to 485,280.60, 727,920.90 and 249,084.60 is: 373,626.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,280.60 : 727,920.90 = 249,084.60 : x
  2. Step 2: Convert to fraction form
    485,280.60/727,920.90 = 249,084.60/x
  3. Step 3: Cross multiply
    485,280.60x = 727,920.90 × 249,084.60
  4. Step 4: Simplify right side
    485,280.60x = 181,313,886,208.14
  5. Step 5: Solve for x
    x = 181,313,886,208.14/485,280.60
  6. Step 6: Final answer
    x = 373,626.90

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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.