Home / 885,728.14-1,221,883.81-522,908.93

Finding the Fourth Proportional to 885,728.14, 1,221,883.81 and 522,908.93

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Solution

The fourth proportional to 885,728.14, 1,221,883.81 and 522,908.93 is: 721,365.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,728.14 : 1,221,883.81 = 522,908.93 : x
  2. Step 2: Convert to fraction form
    885,728.14/1,221,883.81 = 522,908.93/x
  3. Step 3: Cross multiply
    885,728.14x = 1,221,883.81 × 522,908.93
  4. Step 4: Simplify right side
    885,728.14x = 638,933,955,671.42
  5. Step 5: Solve for x
    x = 638,933,955,671.42/885,728.14
  6. Step 6: Final answer
    x = 721,365.76

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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.