Home / 401,585.07-554,403.25-310,177.89

Finding the Fourth Proportional to 401,585.07, 554,403.25 and 310,177.89

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Solution

The fourth proportional to 401,585.07, 554,403.25 and 310,177.89 is: 428,212.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,585.07 : 554,403.25 = 310,177.89 : x
  2. Step 2: Convert to fraction form
    401,585.07/554,403.25 = 310,177.89/x
  3. Step 3: Cross multiply
    401,585.07x = 554,403.25 × 310,177.89
  4. Step 4: Simplify right side
    401,585.07x = 171,963,630,681.87
  5. Step 5: Solve for x
    x = 171,963,630,681.87/401,585.07
  6. Step 6: Final answer
    x = 428,212.21

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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.