Home / 953,674.40-1,429,345.20-420,629.60

Finding the Fourth Proportional to 953,674.40, 1,429,345.20 and 420,629.60

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Solution

The fourth proportional to 953,674.40, 1,429,345.20 and 420,629.60 is: 630,429.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    953,674.40 : 1,429,345.20 = 420,629.60 : x
  2. Step 2: Convert to fraction form
    953,674.40/1,429,345.20 = 420,629.60/x
  3. Step 3: Cross multiply
    953,674.40x = 1,429,345.20 × 420,629.60
  4. Step 4: Simplify right side
    953,674.40x = 601,224,899,737.92
  5. Step 5: Solve for x
    x = 601,224,899,737.92/953,674.40
  6. Step 6: Final answer
    x = 630,429.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.