Home / 510,929.86-705,010.89-290,159.50

Finding the Fourth Proportional to 510,929.86, 705,010.89 and 290,159.50

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Solution

The fourth proportional to 510,929.86, 705,010.89 and 290,159.50 is: 400,379.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,929.86 : 705,010.89 = 290,159.50 : x
  2. Step 2: Convert to fraction form
    510,929.86/705,010.89 = 290,159.50/x
  3. Step 3: Cross multiply
    510,929.86x = 705,010.89 × 290,159.50
  4. Step 4: Simplify right side
    510,929.86x = 204,565,607,336.96
  5. Step 5: Solve for x
    x = 204,565,607,336.96/510,929.86
  6. Step 6: Final answer
    x = 400,379.04

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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.