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Finding the Fourth Proportional to 893,276.80, 1,232,708 and 490,860.16

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Solution

The fourth proportional to 893,276.80, 1,232,708 and 490,860.16 is: 677,379.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,276.80 : 1,232,708 = 490,860.16 : x
  2. Step 2: Convert to fraction form
    893,276.80/1,232,708 = 490,860.16/x
  3. Step 3: Cross multiply
    893,276.80x = 1,232,708 × 490,860.16
  4. Step 4: Simplify right side
    893,276.80x = 605,087,246,113.28
  5. Step 5: Solve for x
    x = 605,087,246,113.28/893,276.80
  6. Step 6: Final answer
    x = 677,379.34

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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.