Home / 709,867.14-979,702.56-404,017.89

Finding the Fourth Proportional to 709,867.14, 979,702.56 and 404,017.89

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Solution

The fourth proportional to 709,867.14, 979,702.56 and 404,017.89 is: 557,593.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,867.14 : 979,702.56 = 404,017.89 : x
  2. Step 2: Convert to fraction form
    709,867.14/979,702.56 = 404,017.89/x
  3. Step 3: Cross multiply
    709,867.14x = 979,702.56 × 404,017.89
  4. Step 4: Simplify right side
    709,867.14x = 395,817,361,118.80
  5. Step 5: Solve for x
    x = 395,817,361,118.80/709,867.14
  6. Step 6: Final answer
    x = 557,593.58

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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.