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Finding the Fourth Proportional to 608,709.83, 913,055.51 and 209,354.06

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Solution

The fourth proportional to 608,709.83, 913,055.51 and 209,354.06 is: 314,027.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,709.83 : 913,055.51 = 209,354.06 : x
  2. Step 2: Convert to fraction form
    608,709.83/913,055.51 = 209,354.06/x
  3. Step 3: Cross multiply
    608,709.83x = 913,055.51 × 209,354.06
  4. Step 4: Simplify right side
    608,709.83x = 191,151,880,829.90
  5. Step 5: Solve for x
    x = 191,151,880,829.90/608,709.83
  6. Step 6: Final answer
    x = 314,027.92

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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.