Home / 529,134.12-730,210.48-287,421.41

Finding the Fourth Proportional to 529,134.12, 730,210.48 and 287,421.41

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Solution

The fourth proportional to 529,134.12, 730,210.48 and 287,421.41 is: 396,644.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,134.12 : 730,210.48 = 287,421.41 : x
  2. Step 2: Convert to fraction form
    529,134.12/730,210.48 = 287,421.41/x
  3. Step 3: Cross multiply
    529,134.12x = 730,210.48 × 287,421.41
  4. Step 4: Simplify right side
    529,134.12x = 209,878,126,865.35
  5. Step 5: Solve for x
    x = 209,878,126,865.35/529,134.12
  6. Step 6: Final answer
    x = 396,644.48

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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.