Home / 687,970.95-949,849.56-446,940.47

Finding the Fourth Proportional to 687,970.95, 949,849.56 and 446,940.47

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Solution

The fourth proportional to 687,970.95, 949,849.56 and 446,940.47 is: 617,069.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,970.95 : 949,849.56 = 446,940.47 : x
  2. Step 2: Convert to fraction form
    687,970.95/949,849.56 = 446,940.47/x
  3. Step 3: Cross multiply
    687,970.95x = 949,849.56 × 446,940.47
  4. Step 4: Simplify right side
    687,970.95x = 424,526,204,026.45
  5. Step 5: Solve for x
    x = 424,526,204,026.45/687,970.95
  6. Step 6: Final answer
    x = 617,069.96

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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.