Home / 379,159.55-522,999.89-288,316.35

Finding the Fourth Proportional to 379,159.55, 522,999.89 and 288,316.35

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Solution

The fourth proportional to 379,159.55, 522,999.89 and 288,316.35 is: 397,693.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,159.55 : 522,999.89 = 288,316.35 : x
  2. Step 2: Convert to fraction form
    379,159.55/522,999.89 = 288,316.35/x
  3. Step 3: Cross multiply
    379,159.55x = 522,999.89 × 288,316.35
  4. Step 4: Simplify right side
    379,159.55x = 150,789,417,893.62
  5. Step 5: Solve for x
    x = 150,789,417,893.62/379,159.55
  6. Step 6: Final answer
    x = 397,693.85

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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.