Home / 920,731.32-1,270,265.22-919,312.20

Finding the Fourth Proportional to 920,731.32, 1,270,265.22 and 919,312.20

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Solution

The fourth proportional to 920,731.32, 1,270,265.22 and 919,312.20 is: 1,268,307.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,731.32 : 1,270,265.22 = 919,312.20 : x
  2. Step 2: Convert to fraction form
    920,731.32/1,270,265.22 = 919,312.20/x
  3. Step 3: Cross multiply
    920,731.32x = 1,270,265.22 × 919,312.20
  4. Step 4: Simplify right side
    920,731.32x = 1,167,770,313,981.68
  5. Step 5: Solve for x
    x = 1,167,770,313,981.68/920,731.32
  6. Step 6: Final answer
    x = 1,268,307.36

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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.