Home / 631,245.31-870,541.59-493,442.44

Finding the Fourth Proportional to 631,245.31, 870,541.59 and 493,442.44

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Solution

The fourth proportional to 631,245.31, 870,541.59 and 493,442.44 is: 680,499.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,245.31 : 870,541.59 = 493,442.44 : x
  2. Step 2: Convert to fraction form
    631,245.31/870,541.59 = 493,442.44/x
  3. Step 3: Cross multiply
    631,245.31x = 870,541.59 × 493,442.44
  4. Step 4: Simplify right side
    631,245.31x = 429,562,165,965.14
  5. Step 5: Solve for x
    x = 429,562,165,965.14/631,245.31
  6. Step 6: Final answer
    x = 680,499.58

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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.