Home / 810,466.32-1,214,612.80-630,768.72

Finding the Fourth Proportional to 810,466.32, 1,214,612.80 and 630,768.72

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Solution

The fourth proportional to 810,466.32, 1,214,612.80 and 630,768.72 is: 945,307.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,466.32 : 1,214,612.80 = 630,768.72 : x
  2. Step 2: Convert to fraction form
    810,466.32/1,214,612.80 = 630,768.72/x
  3. Step 3: Cross multiply
    810,466.32x = 1,214,612.80 × 630,768.72
  4. Step 4: Simplify right side
    810,466.32x = 766,139,761,151.62
  5. Step 5: Solve for x
    x = 766,139,761,151.62/810,466.32
  6. Step 6: Final answer
    x = 945,307.34

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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.