Home / 529,215.20-730,314.06-287,495.84

Finding the Fourth Proportional to 529,215.20, 730,314.06 and 287,495.84

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Solution

The fourth proportional to 529,215.20, 730,314.06 and 287,495.84 is: 396,742.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,215.20 : 730,314.06 = 287,495.84 : x
  2. Step 2: Convert to fraction form
    529,215.20/730,314.06 = 287,495.84/x
  3. Step 3: Cross multiply
    529,215.20x = 730,314.06 × 287,495.84
  4. Step 4: Simplify right side
    529,215.20x = 209,962,254,143.51
  5. Step 5: Solve for x
    x = 209,962,254,143.51/529,215.20
  6. Step 6: Final answer
    x = 396,742.68

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1.5x scale

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.