Home / 870,670.53-1,201,459.41-488,623.50

Finding the Fourth Proportional to 870,670.53, 1,201,459.41 and 488,623.50

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Solution

The fourth proportional to 870,670.53, 1,201,459.41 and 488,623.50 is: 674,263.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,670.53 : 1,201,459.41 = 488,623.50 : x
  2. Step 2: Convert to fraction form
    870,670.53/1,201,459.41 = 488,623.50/x
  3. Step 3: Cross multiply
    870,670.53x = 1,201,459.41 × 488,623.50
  4. Step 4: Simplify right side
    870,670.53x = 587,061,302,022.14
  5. Step 5: Solve for x
    x = 587,061,302,022.14/870,670.53
  6. Step 6: Final answer
    x = 674,263.43

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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.