Home / 529,621.25-730,880.75-287,905.91

Finding the Fourth Proportional to 529,621.25, 730,880.75 and 287,905.91

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Solution

The fourth proportional to 529,621.25, 730,880.75 and 287,905.91 is: 397,312.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,621.25 : 730,880.75 = 287,905.91 : x
  2. Step 2: Convert to fraction form
    529,621.25/730,880.75 = 287,905.91/x
  3. Step 3: Cross multiply
    529,621.25x = 730,880.75 × 287,905.91
  4. Step 4: Simplify right side
    529,621.25x = 210,424,884,495.59
  5. Step 5: Solve for x
    x = 210,424,884,495.59/529,621.25
  6. Step 6: Final answer
    x = 397,312.02

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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.