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Finding the Fourth Proportional to 501,405.26, 691,898.13 and 275,050.76

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Solution

The fourth proportional to 501,405.26, 691,898.13 and 275,050.76 is: 379,547.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,405.26 : 691,898.13 = 275,050.76 : x
  2. Step 2: Convert to fraction form
    501,405.26/691,898.13 = 275,050.76/x
  3. Step 3: Cross multiply
    501,405.26x = 691,898.13 × 275,050.76
  4. Step 4: Simplify right side
    501,405.26x = 190,307,106,499.08
  5. Step 5: Solve for x
    x = 190,307,106,499.08/501,405.26
  6. Step 6: Final answer
    x = 379,547.49

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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.