Home / 1,281,385.14-1,768,018.23-765,038.76

Finding the Fourth Proportional to 1,281,385.14, 1,768,018.23 and 765,038.76

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Solution

The fourth proportional to 1,281,385.14, 1,768,018.23 and 765,038.76 is: 1,055,578.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,385.14 : 1,768,018.23 = 765,038.76 : x
  2. Step 2: Convert to fraction form
    1,281,385.14/1,768,018.23 = 765,038.76/x
  3. Step 3: Cross multiply
    1,281,385.14x = 1,768,018.23 × 765,038.76
  4. Step 4: Simplify right side
    1,281,385.14x = 1,352,602,474,336.59
  5. Step 5: Solve for x
    x = 1,352,602,474,336.59/1,281,385.14
  6. Step 6: Final answer
    x = 1,055,578.40

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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.