Home / 921,792.64-1,382,689.02-290,755.66

Finding the Fourth Proportional to 921,792.64, 1,382,689.02 and 290,755.66

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Solution

The fourth proportional to 921,792.64, 1,382,689.02 and 290,755.66 is: 436,133.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,792.64 : 1,382,689.02 = 290,755.66 : x
  2. Step 2: Convert to fraction form
    921,792.64/1,382,689.02 = 290,755.66/x
  3. Step 3: Cross multiply
    921,792.64x = 1,382,689.02 × 290,755.66
  4. Step 4: Simplify right side
    921,792.64x = 402,024,658,584.85
  5. Step 5: Solve for x
    x = 402,024,658,584.85/921,792.64
  6. Step 6: Final answer
    x = 436,133.51

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.