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Finding the Fourth Proportional to 626,999.89, 865,264.93 and 340,522.02

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Solution

The fourth proportional to 626,999.89, 865,264.93 and 340,522.02 is: 469,923.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,999.89 : 865,264.93 = 340,522.02 : x
  2. Step 2: Convert to fraction form
    626,999.89/865,264.93 = 340,522.02/x
  3. Step 3: Cross multiply
    626,999.89x = 865,264.93 × 340,522.02
  4. Step 4: Simplify right side
    626,999.89x = 294,641,761,798.76
  5. Step 5: Solve for x
    x = 294,641,761,798.76/626,999.89
  6. Step 6: Final answer
    x = 469,923.15

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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.