Home / 869,237.40-1,303,856.10-489,768.60

Finding the Fourth Proportional to 869,237.40, 1,303,856.10 and 489,768.60

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Solution

The fourth proportional to 869,237.40, 1,303,856.10 and 489,768.60 is: 734,652.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,237.40 : 1,303,856.10 = 489,768.60 : x
  2. Step 2: Convert to fraction form
    869,237.40/1,303,856.10 = 489,768.60/x
  3. Step 3: Cross multiply
    869,237.40x = 1,303,856.10 × 489,768.60
  4. Step 4: Simplify right side
    869,237.40x = 638,587,776,698.46
  5. Step 5: Solve for x
    x = 638,587,776,698.46/869,237.40
  6. Step 6: Final answer
    x = 734,652.90

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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.