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Finding the Fourth Proportional to 721,800.52, 993,802.44 and 635,698.60

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Solution

The fourth proportional to 721,800.52, 993,802.44 and 635,698.60 is: 875,254.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,800.52 : 993,802.44 = 635,698.60 : x
  2. Step 2: Convert to fraction form
    721,800.52/993,802.44 = 635,698.60/x
  3. Step 3: Cross multiply
    721,800.52x = 993,802.44 × 635,698.60
  4. Step 4: Simplify right side
    721,800.52x = 631,758,819,784.58
  5. Step 5: Solve for x
    x = 631,758,819,784.58/721,800.52
  6. Step 6: Final answer
    x = 875,254.04

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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.