Home / 870,999.49-1,201,938.67-483,840.00

Finding the Fourth Proportional to 870,999.49, 1,201,938.67 and 483,840.00

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Solution

The fourth proportional to 870,999.49, 1,201,938.67 and 483,840.00 is: 667,676.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,999.49 : 1,201,938.67 = 483,840.00 : x
  2. Step 2: Convert to fraction form
    870,999.49/1,201,938.67 = 483,840.00/x
  3. Step 3: Cross multiply
    870,999.49x = 1,201,938.67 × 483,840.00
  4. Step 4: Simplify right side
    870,999.49x = 581,545,997,663.91
  5. Step 5: Solve for x
    x = 581,545,997,663.91/870,999.49
  6. Step 6: Final answer
    x = 667,676.63

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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.