Home / 909,307.76-1,254,817.86-501,409.50

Finding the Fourth Proportional to 909,307.76, 1,254,817.86 and 501,409.50

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Solution

The fourth proportional to 909,307.76, 1,254,817.86 and 501,409.50 is: 691,930.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,307.76 : 1,254,817.86 = 501,409.50 : x
  2. Step 2: Convert to fraction form
    909,307.76/1,254,817.86 = 501,409.50/x
  3. Step 3: Cross multiply
    909,307.76x = 1,254,817.86 × 501,409.50
  4. Step 4: Simplify right side
    909,307.76x = 629,177,592,008.25
  5. Step 5: Solve for x
    x = 629,177,592,008.25/909,307.76
  6. Step 6: Final answer
    x = 691,930.30

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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.