Home / 529,330.07-730,479.95-287,612.64

Finding the Fourth Proportional to 529,330.07, 730,479.95 and 287,612.64

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Solution

The fourth proportional to 529,330.07, 730,479.95 and 287,612.64 is: 396,907.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,330.07 : 730,479.95 = 287,612.64 : x
  2. Step 2: Convert to fraction form
    529,330.07/730,479.95 = 287,612.64/x
  3. Step 3: Cross multiply
    529,330.07x = 730,479.95 × 287,612.64
  4. Step 4: Simplify right side
    529,330.07x = 210,095,265,448.51
  5. Step 5: Solve for x
    x = 210,095,265,448.51/529,330.07
  6. Step 6: Final answer
    x = 396,907.86

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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.