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Finding the Fourth Proportional to 926,640, 1,278,754.56 and 524,232

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Solution

The fourth proportional to 926,640, 1,278,754.56 and 524,232 is: 723,435.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,640 : 1,278,754.56 = 524,232 : x
  2. Step 2: Convert to fraction form
    926,640/1,278,754.56 = 524,232/x
  3. Step 3: Cross multiply
    926,640x = 1,278,754.56 × 524,232
  4. Step 4: Simplify right side
    926,640x = 670,364,060,497.92
  5. Step 5: Solve for x
    x = 670,364,060,497.92/926,640
  6. Step 6: Final answer
    x = 723,435.27

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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.