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Finding the Fourth Proportional to 556,033.86, 767,408.70 and 352,103.40

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Solution

The fourth proportional to 556,033.86, 767,408.70 and 352,103.40 is: 485,954.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,033.86 : 767,408.70 = 352,103.40 : x
  2. Step 2: Convert to fraction form
    556,033.86/767,408.70 = 352,103.40/x
  3. Step 3: Cross multiply
    556,033.86x = 767,408.70 × 352,103.40
  4. Step 4: Simplify right side
    556,033.86x = 270,207,212,459.58
  5. Step 5: Solve for x
    x = 270,207,212,459.58/556,033.86
  6. Step 6: Final answer
    x = 485,954.60

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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.