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Finding the Fourth Proportional to 526,728.51, 726,894.72 and 297,331.65

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Solution

The fourth proportional to 526,728.51, 726,894.72 and 297,331.65 is: 410,322.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,728.51 : 726,894.72 = 297,331.65 : x
  2. Step 2: Convert to fraction form
    526,728.51/726,894.72 = 297,331.65/x
  3. Step 3: Cross multiply
    526,728.51x = 726,894.72 × 297,331.65
  4. Step 4: Simplify right side
    526,728.51x = 216,128,806,473.89
  5. Step 5: Solve for x
    x = 216,128,806,473.89/526,728.51
  6. Step 6: Final answer
    x = 410,322.97

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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.