Home / 659,217.60-909,739.47-372,731.52

Finding the Fourth Proportional to 659,217.60, 909,739.47 and 372,731.52

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Solution

The fourth proportional to 659,217.60, 909,739.47 and 372,731.52 is: 514,380.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,217.60 : 909,739.47 = 372,731.52 : x
  2. Step 2: Convert to fraction form
    659,217.60/909,739.47 = 372,731.52/x
  3. Step 3: Cross multiply
    659,217.60x = 909,739.47 × 372,731.52
  4. Step 4: Simplify right side
    659,217.60x = 339,088,575,457.09
  5. Step 5: Solve for x
    x = 339,088,575,457.09/659,217.60
  6. Step 6: Final answer
    x = 514,380.34

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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.