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Finding the Fourth Proportional to 683,642.61, 943,436.69 and 377,726.03

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Solution

The fourth proportional to 683,642.61, 943,436.69 and 377,726.03 is: 521,267.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,642.61 : 943,436.69 = 377,726.03 : x
  2. Step 2: Convert to fraction form
    683,642.61/943,436.69 = 377,726.03/x
  3. Step 3: Cross multiply
    683,642.61x = 943,436.69 × 377,726.03
  4. Step 4: Simplify right side
    683,642.61x = 356,360,595,470.04
  5. Step 5: Solve for x
    x = 356,360,595,470.04/683,642.61
  6. Step 6: Final answer
    x = 521,267.38

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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.