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Finding the Fourth Proportional to 722,860.83, 997,220.84 and 436,289.31

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Solution

The fourth proportional to 722,860.83, 997,220.84 and 436,289.31 is: 601,881.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,860.83 : 997,220.84 = 436,289.31 : x
  2. Step 2: Convert to fraction form
    722,860.83/997,220.84 = 436,289.31/x
  3. Step 3: Cross multiply
    722,860.83x = 997,220.84 × 436,289.31
  4. Step 4: Simplify right side
    722,860.83x = 435,076,790,019.77
  5. Step 5: Solve for x
    x = 435,076,790,019.77/722,860.83
  6. Step 6: Final answer
    x = 601,881.82

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1.5x scale

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.