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Finding the Fourth Proportional to 529,530.32, 730,756.32 and 287,812.92

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Solution

The fourth proportional to 529,530.32, 730,756.32 and 287,812.92 is: 397,184.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,530.32 : 730,756.32 = 287,812.92 : x
  2. Step 2: Convert to fraction form
    529,530.32/730,756.32 = 287,812.92/x
  3. Step 3: Cross multiply
    529,530.32x = 730,756.32 × 287,812.92
  4. Step 4: Simplify right side
    529,530.32x = 210,321,110,267.65
  5. Step 5: Solve for x
    x = 210,321,110,267.65/529,530.32
  6. Step 6: Final answer
    x = 397,184.26

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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.