Home / 953,131.36-1,429,386-420,630.88

Finding the Fourth Proportional to 953,131.36, 1,429,386 and 420,630.88

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Solution

The fourth proportional to 953,131.36, 1,429,386 and 420,630.88 is: 630,809.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    953,131.36 : 1,429,386 = 420,630.88 : x
  2. Step 2: Convert to fraction form
    953,131.36/1,429,386 = 420,630.88/x
  3. Step 3: Cross multiply
    953,131.36x = 1,429,386 × 420,630.88
  4. Step 4: Simplify right side
    953,131.36x = 601,243,891,039.68
  5. Step 5: Solve for x
    x = 601,243,891,039.68/953,131.36
  6. Step 6: Final answer
    x = 630,809.05

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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.