Home / 709,841.40-979,568.28-403,911.24

Finding the Fourth Proportional to 709,841.40, 979,568.28 and 403,911.24

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Solution

The fourth proportional to 709,841.40, 979,568.28 and 403,911.24 is: 557,390.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,841.40 : 979,568.28 = 403,911.24 : x
  2. Step 2: Convert to fraction form
    709,841.40/979,568.28 = 403,911.24/x
  3. Step 3: Cross multiply
    709,841.40x = 979,568.28 × 403,911.24
  4. Step 4: Simplify right side
    709,841.40x = 395,658,638,639.47
  5. Step 5: Solve for x
    x = 395,658,638,639.47/709,841.40
  6. Step 6: Final answer
    x = 557,390.20

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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.