Home / 958,488.40-1,322,718.47-528,768.42

Finding the Fourth Proportional to 958,488.40, 1,322,718.47 and 528,768.42

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Solution

The fourth proportional to 958,488.40, 1,322,718.47 and 528,768.42 is: 729,702.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,488.40 : 1,322,718.47 = 528,768.42 : x
  2. Step 2: Convert to fraction form
    958,488.40/1,322,718.47 = 528,768.42/x
  3. Step 3: Cross multiply
    958,488.40x = 1,322,718.47 × 528,768.42
  4. Step 4: Simplify right side
    958,488.40x = 699,411,755,486.72
  5. Step 5: Solve for x
    x = 699,411,755,486.72/958,488.40
  6. Step 6: Final answer
    x = 729,702.89

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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.