Home / 903,285.06-1,246,443.57-521,434.86

Finding the Fourth Proportional to 903,285.06, 1,246,443.57 and 521,434.86

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Solution

The fourth proportional to 903,285.06, 1,246,443.57 and 521,434.86 is: 719,528.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,285.06 : 1,246,443.57 = 521,434.86 : x
  2. Step 2: Convert to fraction form
    903,285.06/1,246,443.57 = 521,434.86/x
  3. Step 3: Cross multiply
    903,285.06x = 1,246,443.57 × 521,434.86
  4. Step 4: Simplify right side
    903,285.06x = 649,939,128,420.85
  5. Step 5: Solve for x
    x = 649,939,128,420.85/903,285.06
  6. Step 6: Final answer
    x = 719,528.26

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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.