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Finding the Fourth Proportional to 662,135.94, 913,684.32 and 371,681.01

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Solution

The fourth proportional to 662,135.94, 913,684.32 and 371,681.01 is: 512,884.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,135.94 : 913,684.32 = 371,681.01 : x
  2. Step 2: Convert to fraction form
    662,135.94/913,684.32 = 371,681.01/x
  3. Step 3: Cross multiply
    662,135.94x = 913,684.32 × 371,681.01
  4. Step 4: Simplify right side
    662,135.94x = 339,599,110,878.76
  5. Step 5: Solve for x
    x = 339,599,110,878.76/662,135.94
  6. Step 6: Final answer
    x = 512,884.27

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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.