Home / 837,318.62-1,155,488.86-455,337.20

Finding the Fourth Proportional to 837,318.62, 1,155,488.86 and 455,337.20

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Solution

The fourth proportional to 837,318.62, 1,155,488.86 and 455,337.20 is: 628,359.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,318.62 : 1,155,488.86 = 455,337.20 : x
  2. Step 2: Convert to fraction form
    837,318.62/1,155,488.86 = 455,337.20/x
  3. Step 3: Cross multiply
    837,318.62x = 1,155,488.86 × 455,337.20
  4. Step 4: Simplify right side
    837,318.62x = 526,137,065,601.49
  5. Step 5: Solve for x
    x = 526,137,065,601.49/837,318.62
  6. Step 6: Final answer
    x = 628,359.45

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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.