Home / 909,171.74-1,254,731.72-501,353.55

Finding the Fourth Proportional to 909,171.74, 1,254,731.72 and 501,353.55

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Solution

The fourth proportional to 909,171.74, 1,254,731.72 and 501,353.55 is: 691,909.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,171.74 : 1,254,731.72 = 501,353.55 : x
  2. Step 2: Convert to fraction form
    909,171.74/1,254,731.72 = 501,353.55/x
  3. Step 3: Cross multiply
    909,171.74x = 1,254,731.72 × 501,353.55
  4. Step 4: Simplify right side
    909,171.74x = 629,064,199,612.84
  5. Step 5: Solve for x
    x = 629,064,199,612.84/909,171.74
  6. Step 6: Final answer
    x = 691,909.10

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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.