Home / 657,739.52-907,681.34-355,933.52

Finding the Fourth Proportional to 657,739.52, 907,681.34 and 355,933.52

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Solution

The fourth proportional to 657,739.52, 907,681.34 and 355,933.52 is: 491,188.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,739.52 : 907,681.34 = 355,933.52 : x
  2. Step 2: Convert to fraction form
    657,739.52/907,681.34 = 355,933.52/x
  3. Step 3: Cross multiply
    657,739.52x = 907,681.34 × 355,933.52
  4. Step 4: Simplify right side
    657,739.52x = 323,074,214,384.52
  5. Step 5: Solve for x
    x = 323,074,214,384.52/657,739.52
  6. Step 6: Final answer
    x = 491,188.69

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1.5x scale

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.