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Finding the Fourth Proportional to 607,731.40, 910,284.90 and 528,999.40

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Solution

The fourth proportional to 607,731.40, 910,284.90 and 528,999.40 is: 792,356.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,731.40 : 910,284.90 = 528,999.40 : x
  2. Step 2: Convert to fraction form
    607,731.40/910,284.90 = 528,999.40/x
  3. Step 3: Cross multiply
    607,731.40x = 910,284.90 × 528,999.40
  4. Step 4: Simplify right side
    607,731.40x = 481,540,165,929.06
  5. Step 5: Solve for x
    x = 481,540,165,929.06/607,731.40
  6. Step 6: Final answer
    x = 792,356.90

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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.