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Finding the Fourth Proportional to 848,472.30, 1,272,708.45 and 807,000.30

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Solution

The fourth proportional to 848,472.30, 1,272,708.45 and 807,000.30 is: 1,210,500.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,472.30 : 1,272,708.45 = 807,000.30 : x
  2. Step 2: Convert to fraction form
    848,472.30/1,272,708.45 = 807,000.30/x
  3. Step 3: Cross multiply
    848,472.30x = 1,272,708.45 × 807,000.30
  4. Step 4: Simplify right side
    848,472.30x = 1,027,076,100,962.54
  5. Step 5: Solve for x
    x = 1,027,076,100,962.54/848,472.30
  6. Step 6: Final answer
    x = 1,210,500.45

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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.