Home / 869,915.02-1,200,480.22-482,788.87

Finding the Fourth Proportional to 869,915.02, 1,200,480.22 and 482,788.87

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Solution

The fourth proportional to 869,915.02, 1,200,480.22 and 482,788.87 is: 666,247.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,915.02 : 1,200,480.22 = 482,788.87 : x
  2. Step 2: Convert to fraction form
    869,915.02/1,200,480.22 = 482,788.87/x
  3. Step 3: Cross multiply
    869,915.02x = 1,200,480.22 × 482,788.87
  4. Step 4: Simplify right side
    869,915.02x = 579,578,488,871.15
  5. Step 5: Solve for x
    x = 579,578,488,871.15/869,915.02
  6. Step 6: Final answer
    x = 666,247.25

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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.