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Finding the Fourth Proportional to 648,001.80, 971,580.30 and 581,646.60

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Solution

The fourth proportional to 648,001.80, 971,580.30 and 581,646.60 is: 872,090.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,001.80 : 971,580.30 = 581,646.60 : x
  2. Step 2: Convert to fraction form
    648,001.80/971,580.30 = 581,646.60/x
  3. Step 3: Cross multiply
    648,001.80x = 971,580.30 × 581,646.60
  4. Step 4: Simplify right side
    648,001.80x = 565,116,378,121.98
  5. Step 5: Solve for x
    x = 565,116,378,121.98/648,001.80
  6. Step 6: Final answer
    x = 872,090.75

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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.