Home / 487,634.51-673,070.90-283,724.83

Finding the Fourth Proportional to 487,634.51, 673,070.90 and 283,724.83

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Solution

The fourth proportional to 487,634.51, 673,070.90 and 283,724.83 is: 391,618.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,634.51 : 673,070.90 = 283,724.83 : x
  2. Step 2: Convert to fraction form
    487,634.51/673,070.90 = 283,724.83/x
  3. Step 3: Cross multiply
    487,634.51x = 673,070.90 × 283,724.83
  4. Step 4: Simplify right side
    487,634.51x = 190,966,921,896.47
  5. Step 5: Solve for x
    x = 190,966,921,896.47/487,634.51
  6. Step 6: Final answer
    x = 391,618.96

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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.