Home / 811,801.34-1,120,511.04-472,335.20

Finding the Fourth Proportional to 811,801.34, 1,120,511.04 and 472,335.20

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Solution

The fourth proportional to 811,801.34, 1,120,511.04 and 472,335.20 is: 651,953.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,801.34 : 1,120,511.04 = 472,335.20 : x
  2. Step 2: Convert to fraction form
    811,801.34/1,120,511.04 = 472,335.20/x
  3. Step 3: Cross multiply
    811,801.34x = 1,120,511.04 × 472,335.20
  4. Step 4: Simplify right side
    811,801.34x = 529,256,806,180.61
  5. Step 5: Solve for x
    x = 529,256,806,180.61/811,801.34
  6. Step 6: Final answer
    x = 651,953.60

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Double scale
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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.