Home / 649,565.40-973,829.70-275,280.60

Finding the Fourth Proportional to 649,565.40, 973,829.70 and 275,280.60

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Solution

The fourth proportional to 649,565.40, 973,829.70 and 275,280.60 is: 412,701.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,565.40 : 973,829.70 = 275,280.60 : x
  2. Step 2: Convert to fraction form
    649,565.40/973,829.70 = 275,280.60/x
  3. Step 3: Cross multiply
    649,565.40x = 973,829.70 × 275,280.60
  4. Step 4: Simplify right side
    649,565.40x = 268,076,424,113.82
  5. Step 5: Solve for x
    x = 268,076,424,113.82/649,565.40
  6. Step 6: Final answer
    x = 412,701.21

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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.