Home / 401,440.52-553,987.35-231,674.65

Finding the Fourth Proportional to 401,440.52, 553,987.35 and 231,674.65

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Solution

The fourth proportional to 401,440.52, 553,987.35 and 231,674.65 is: 319,710.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,440.52 : 553,987.35 = 231,674.65 : x
  2. Step 2: Convert to fraction form
    401,440.52/553,987.35 = 231,674.65/x
  3. Step 3: Cross multiply
    401,440.52x = 553,987.35 × 231,674.65
  4. Step 4: Simplify right side
    401,440.52x = 128,344,824,030.71
  5. Step 5: Solve for x
    x = 128,344,824,030.71/401,440.52
  6. Step 6: Final answer
    x = 319,710.68

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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.