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Finding the Fourth Proportional to 523,859.93, 722,929.59 and 306,081.40

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Solution

The fourth proportional to 523,859.93, 722,929.59 and 306,081.40 is: 422,394.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,859.93 : 722,929.59 = 306,081.40 : x
  2. Step 2: Convert to fraction form
    523,859.93/722,929.59 = 306,081.40/x
  3. Step 3: Cross multiply
    523,859.93x = 722,929.59 × 306,081.40
  4. Step 4: Simplify right side
    523,859.93x = 221,275,298,798.22
  5. Step 5: Solve for x
    x = 221,275,298,798.22/523,859.93
  6. Step 6: Final answer
    x = 422,394.01

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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.