Home / 837,320.76-1,155,455.28-455,347.44

Finding the Fourth Proportional to 837,320.76, 1,155,455.28 and 455,347.44

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Solution

The fourth proportional to 837,320.76, 1,155,455.28 and 455,347.44 is: 628,353.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,320.76 : 1,155,455.28 = 455,347.44 : x
  2. Step 2: Convert to fraction form
    837,320.76/1,155,455.28 = 455,347.44/x
  3. Step 3: Cross multiply
    837,320.76x = 1,155,455.28 × 455,347.44
  4. Step 4: Simplify right side
    837,320.76x = 526,133,603,782.48
  5. Step 5: Solve for x
    x = 526,133,603,782.48/837,320.76
  6. Step 6: Final answer
    x = 628,353.71

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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.