Home / 513,111.42-708,032.43-283,637.79

Finding the Fourth Proportional to 513,111.42, 708,032.43 and 283,637.79

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Solution

The fourth proportional to 513,111.42, 708,032.43 and 283,637.79 is: 391,386.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,111.42 : 708,032.43 = 283,637.79 : x
  2. Step 2: Convert to fraction form
    513,111.42/708,032.43 = 283,637.79/x
  3. Step 3: Cross multiply
    513,111.42x = 708,032.43 × 283,637.79
  4. Step 4: Simplify right side
    513,111.42x = 200,824,753,693.53
  5. Step 5: Solve for x
    x = 200,824,753,693.53/513,111.42
  6. Step 6: Final answer
    x = 391,386.25

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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.