Home / 907,436.81-1,252,278.83-493,985.55

Finding the Fourth Proportional to 907,436.81, 1,252,278.83 and 493,985.55

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Solution

The fourth proportional to 907,436.81, 1,252,278.83 and 493,985.55 is: 681,708.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,436.81 : 1,252,278.83 = 493,985.55 : x
  2. Step 2: Convert to fraction form
    907,436.81/1,252,278.83 = 493,985.55/x
  3. Step 3: Cross multiply
    907,436.81x = 1,252,278.83 × 493,985.55
  4. Step 4: Simplify right side
    907,436.81x = 618,607,644,120.98
  5. Step 5: Solve for x
    x = 618,607,644,120.98/907,436.81
  6. Step 6: Final answer
    x = 681,708.79

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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.