Home / 785,400.06-1,083,823.02-479,987.40

Finding the Fourth Proportional to 785,400.06, 1,083,823.02 and 479,987.40

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Solution

The fourth proportional to 785,400.06, 1,083,823.02 and 479,987.40 is: 662,364.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,400.06 : 1,083,823.02 = 479,987.40 : x
  2. Step 2: Convert to fraction form
    785,400.06/1,083,823.02 = 479,987.40/x
  3. Step 3: Cross multiply
    785,400.06x = 1,083,823.02 × 479,987.40
  4. Step 4: Simplify right side
    785,400.06x = 520,221,393,429.95
  5. Step 5: Solve for x
    x = 520,221,393,429.95/785,400.06
  6. Step 6: Final answer
    x = 662,364.85

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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.