Home / 909,040.37-1,254,479.54-501,132.87

Finding the Fourth Proportional to 909,040.37, 1,254,479.54 and 501,132.87

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Solution

The fourth proportional to 909,040.37, 1,254,479.54 and 501,132.87 is: 691,565.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,040.37 : 1,254,479.54 = 501,132.87 : x
  2. Step 2: Convert to fraction form
    909,040.37/1,254,479.54 = 501,132.87/x
  3. Step 3: Cross multiply
    909,040.37x = 1,254,479.54 × 501,132.87
  4. Step 4: Simplify right side
    909,040.37x = 628,660,929,730.82
  5. Step 5: Solve for x
    x = 628,660,929,730.82/909,040.37
  6. Step 6: Final answer
    x = 691,565.47

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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.