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Finding the Fourth Proportional to 809,468.22, 1,117,444.12 and 469,871.10

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Solution

The fourth proportional to 809,468.22, 1,117,444.12 and 469,871.10 is: 648,641.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,468.22 : 1,117,444.12 = 469,871.10 : x
  2. Step 2: Convert to fraction form
    809,468.22/1,117,444.12 = 469,871.10/x
  3. Step 3: Cross multiply
    809,468.22x = 1,117,444.12 × 469,871.10
  4. Step 4: Simplify right side
    809,468.22x = 525,054,697,852.93
  5. Step 5: Solve for x
    x = 525,054,697,852.93/809,468.22
  6. Step 6: Final answer
    x = 648,641.52

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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.