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Finding the Fourth Proportional to 608,897.52, 913,444.56 and 209,440.80

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Solution

The fourth proportional to 608,897.52, 913,444.56 and 209,440.80 is: 314,195.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,897.52 : 913,444.56 = 209,440.80 : x
  2. Step 2: Convert to fraction form
    608,897.52/913,444.56 = 209,440.80/x
  3. Step 3: Cross multiply
    608,897.52x = 913,444.56 × 209,440.80
  4. Step 4: Simplify right side
    608,897.52x = 191,312,559,402.05
  5. Step 5: Solve for x
    x = 191,312,559,402.05/608,897.52
  6. Step 6: Final answer
    x = 314,195.01

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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.