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Finding the Fourth Proportional to 525,154.03, 724,708.88 and 286,690.03

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Solution

The fourth proportional to 525,154.03, 724,708.88 and 286,690.03 is: 395,630.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,154.03 : 724,708.88 = 286,690.03 : x
  2. Step 2: Convert to fraction form
    525,154.03/724,708.88 = 286,690.03/x
  3. Step 3: Cross multiply
    525,154.03x = 724,708.88 × 286,690.03
  4. Step 4: Simplify right side
    525,154.03x = 207,766,809,115.02
  5. Step 5: Solve for x
    x = 207,766,809,115.02/525,154.03
  6. Step 6: Final answer
    x = 395,630.23

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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.