Home / 607,013.28-837,531.28-389,122.40

Finding the Fourth Proportional to 607,013.28, 837,531.28 and 389,122.40

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Solution

The fourth proportional to 607,013.28, 837,531.28 and 389,122.40 is: 536,894.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,013.28 : 837,531.28 = 389,122.40 : x
  2. Step 2: Convert to fraction form
    607,013.28/837,531.28 = 389,122.40/x
  3. Step 3: Cross multiply
    607,013.28x = 837,531.28 × 389,122.40
  4. Step 4: Simplify right side
    607,013.28x = 325,902,181,748.67
  5. Step 5: Solve for x
    x = 325,902,181,748.67/607,013.28
  6. Step 6: Final answer
    x = 536,894.65

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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.