Home / 870,860.28-1,201,705.02-488,812.44

Finding the Fourth Proportional to 870,860.28, 1,201,705.02 and 488,812.44

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Solution

The fourth proportional to 870,860.28, 1,201,705.02 and 488,812.44 is: 674,515.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,860.28 : 1,201,705.02 = 488,812.44 : x
  2. Step 2: Convert to fraction form
    870,860.28/1,201,705.02 = 488,812.44/x
  3. Step 3: Cross multiply
    870,860.28x = 1,201,705.02 × 488,812.44
  4. Step 4: Simplify right side
    870,860.28x = 587,408,362,986.45
  5. Step 5: Solve for x
    x = 587,408,362,986.45/870,860.28
  6. Step 6: Final answer
    x = 674,515.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.