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Finding the Fourth Proportional to 630,789.87, 870,360.08 and 362,466.03

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Solution

The fourth proportional to 630,789.87, 870,360.08 and 362,466.03 is: 500,128.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,789.87 : 870,360.08 = 362,466.03 : x
  2. Step 2: Convert to fraction form
    630,789.87/870,360.08 = 362,466.03/x
  3. Step 3: Cross multiply
    630,789.87x = 870,360.08 × 362,466.03
  4. Step 4: Simplify right side
    630,789.87x = 315,475,961,055.75
  5. Step 5: Solve for x
    x = 315,475,961,055.75/630,789.87
  6. Step 6: Final answer
    x = 500,128.45

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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.