Home / 971,407.78-1,340,544.03-535,815.36

Finding the Fourth Proportional to 971,407.78, 1,340,544.03 and 535,815.36

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Solution

The fourth proportional to 971,407.78, 1,340,544.03 and 535,815.36 is: 739,425.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,407.78 : 1,340,544.03 = 535,815.36 : x
  2. Step 2: Convert to fraction form
    971,407.78/1,340,544.03 = 535,815.36/x
  3. Step 3: Cross multiply
    971,407.78x = 1,340,544.03 × 535,815.36
  4. Step 4: Simplify right side
    971,407.78x = 718,284,082,197.74
  5. Step 5: Solve for x
    x = 718,284,082,197.74/971,407.78
  6. Step 6: Final answer
    x = 739,425.91

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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.