Home / 903,830.78-1,247,275.59-521,849.36

Finding the Fourth Proportional to 903,830.78, 1,247,275.59 and 521,849.36

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Solution

The fourth proportional to 903,830.78, 1,247,275.59 and 521,849.36 is: 720,145.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,830.78 : 1,247,275.59 = 521,849.36 : x
  2. Step 2: Convert to fraction form
    903,830.78/1,247,275.59 = 521,849.36/x
  3. Step 3: Cross multiply
    903,830.78x = 1,247,275.59 × 521,849.36
  4. Step 4: Simplify right side
    903,830.78x = 650,889,968,385.12
  5. Step 5: Solve for x
    x = 650,889,968,385.12/903,830.78
  6. Step 6: Final answer
    x = 720,145.83

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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.