Home / 757,931.58-1,045,918.17-418,392.54

Finding the Fourth Proportional to 757,931.58, 1,045,918.17 and 418,392.54

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Solution

The fourth proportional to 757,931.58, 1,045,918.17 and 418,392.54 is: 577,366.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,931.58 : 1,045,918.17 = 418,392.54 : x
  2. Step 2: Convert to fraction form
    757,931.58/1,045,918.17 = 418,392.54/x
  3. Step 3: Cross multiply
    757,931.58x = 1,045,918.17 × 418,392.54
  4. Step 4: Simplify right side
    757,931.58x = 437,604,359,778.45
  5. Step 5: Solve for x
    x = 437,604,359,778.45/757,931.58
  6. Step 6: Final answer
    x = 577,366.57

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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.