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Finding the Fourth Proportional to 608,854.86, 909,548.87 and 438,924.96

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Solution

The fourth proportional to 608,854.86, 909,548.87 and 438,924.96 is: 655,696.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,854.86 : 909,548.87 = 438,924.96 : x
  2. Step 2: Convert to fraction form
    608,854.86/909,548.87 = 438,924.96/x
  3. Step 3: Cross multiply
    608,854.86x = 909,548.87 × 438,924.96
  4. Step 4: Simplify right side
    608,854.86x = 399,223,701,382.80
  5. Step 5: Solve for x
    x = 399,223,701,382.80/608,854.86
  6. Step 6: Final answer
    x = 655,696.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.