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Finding the Fourth Proportional to 847,020, 1,270,530 and 256,044

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Solution

The fourth proportional to 847,020, 1,270,530 and 256,044 is: 384,066

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,020 : 1,270,530 = 256,044 : x
  2. Step 2: Convert to fraction form
    847,020/1,270,530 = 256,044/x
  3. Step 3: Cross multiply
    847,020x = 1,270,530 × 256,044
  4. Step 4: Simplify right side
    847,020x = 325,311,583,320
  5. Step 5: Solve for x
    x = 325,311,583,320/847,020
  6. Step 6: Final answer
    x = 384,066

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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.