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Finding the Fourth Proportional to 607,634.10, 909,701.55 and 371,438.10

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Solution

The fourth proportional to 607,634.10, 909,701.55 and 371,438.10 is: 556,087.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,634.10 : 909,701.55 = 371,438.10 : x
  2. Step 2: Convert to fraction form
    607,634.10/909,701.55 = 371,438.10/x
  3. Step 3: Cross multiply
    607,634.10x = 909,701.55 × 371,438.10
  4. Step 4: Simplify right side
    607,634.10x = 337,897,815,299.06
  5. Step 5: Solve for x
    x = 337,897,815,299.06/607,634.10
  6. Step 6: Final answer
    x = 556,087.64

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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.