Home / 638,192.12-880,550.45-362,488.64

Finding the Fourth Proportional to 638,192.12, 880,550.45 and 362,488.64

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Solution

The fourth proportional to 638,192.12, 880,550.45 and 362,488.64 is: 500,146.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,192.12 : 880,550.45 = 362,488.64 : x
  2. Step 2: Convert to fraction form
    638,192.12/880,550.45 = 362,488.64/x
  3. Step 3: Cross multiply
    638,192.12x = 880,550.45 × 362,488.64
  4. Step 4: Simplify right side
    638,192.12x = 319,189,528,856.69
  5. Step 5: Solve for x
    x = 319,189,528,856.69/638,192.12
  6. Step 6: Final answer
    x = 500,146.46

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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.