Home / 631,895.59-872,029.43-345,442.33

Finding the Fourth Proportional to 631,895.59, 872,029.43 and 345,442.33

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Solution

The fourth proportional to 631,895.59, 872,029.43 and 345,442.33 is: 476,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,895.59 : 872,029.43 = 345,442.33 : x
  2. Step 2: Convert to fraction form
    631,895.59/872,029.43 = 345,442.33/x
  3. Step 3: Cross multiply
    631,895.59x = 872,029.43 × 345,442.33
  4. Step 4: Simplify right side
    631,895.59x = 301,235,878,127.77
  5. Step 5: Solve for x
    x = 301,235,878,127.77/631,895.59
  6. Step 6: Final answer
    x = 476,717.80

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Double scale
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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.