Home / 880,973.20-1,321,805.40-320,064.40

Finding the Fourth Proportional to 880,973.20, 1,321,805.40 and 320,064.40

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Solution

The fourth proportional to 880,973.20, 1,321,805.40 and 320,064.40 is: 480,222.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,973.20 : 1,321,805.40 = 320,064.40 : x
  2. Step 2: Convert to fraction form
    880,973.20/1,321,805.40 = 320,064.40/x
  3. Step 3: Cross multiply
    880,973.20x = 1,321,805.40 × 320,064.40
  4. Step 4: Simplify right side
    880,973.20x = 423,062,852,267.76
  5. Step 5: Solve for x
    x = 423,062,852,267.76/880,973.20
  6. Step 6: Final answer
    x = 480,222.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.