Home / 867,836.21-1,197,739.50-485,887.59

Finding the Fourth Proportional to 867,836.21, 1,197,739.50 and 485,887.59

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Solution

The fourth proportional to 867,836.21, 1,197,739.50 and 485,887.59 is: 670,595.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,836.21 : 1,197,739.50 = 485,887.59 : x
  2. Step 2: Convert to fraction form
    867,836.21/1,197,739.50 = 485,887.59/x
  3. Step 3: Cross multiply
    867,836.21x = 1,197,739.50 × 485,887.59
  4. Step 4: Simplify right side
    867,836.21x = 581,966,759,102.81
  5. Step 5: Solve for x
    x = 581,966,759,102.81/867,836.21
  6. Step 6: Final answer
    x = 670,595.16

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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.