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Finding the Fourth Proportional to 1,047,256, 1,445,213.28 and 570,328

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Solution

The fourth proportional to 1,047,256, 1,445,213.28 and 570,328 is: 787,052.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,256 : 1,445,213.28 = 570,328 : x
  2. Step 2: Convert to fraction form
    1,047,256/1,445,213.28 = 570,328/x
  3. Step 3: Cross multiply
    1,047,256x = 1,445,213.28 × 570,328
  4. Step 4: Simplify right side
    1,047,256x = 824,245,599,555.84
  5. Step 5: Solve for x
    x = 824,245,599,555.84/1,047,256
  6. Step 6: Final answer
    x = 787,052.64

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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.