Home / 821,398.64-1,133,531.88-463,702.64

Finding the Fourth Proportional to 821,398.64, 1,133,531.88 and 463,702.64

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Solution

The fourth proportional to 821,398.64, 1,133,531.88 and 463,702.64 is: 639,910.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,398.64 : 1,133,531.88 = 463,702.64 : x
  2. Step 2: Convert to fraction form
    821,398.64/1,133,531.88 = 463,702.64/x
  3. Step 3: Cross multiply
    821,398.64x = 1,133,531.88 × 463,702.64
  4. Step 4: Simplify right side
    821,398.64x = 525,621,725,280.16
  5. Step 5: Solve for x
    x = 525,621,725,280.16/821,398.64
  6. Step 6: Final answer
    x = 639,910.63

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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.