Home / 880,455.60-1,320,100.20-319,417.20

Finding the Fourth Proportional to 880,455.60, 1,320,100.20 and 319,417.20

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Solution

The fourth proportional to 880,455.60, 1,320,100.20 and 319,417.20 is: 478,914.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,455.60 : 1,320,100.20 = 319,417.20 : x
  2. Step 2: Convert to fraction form
    880,455.60/1,320,100.20 = 319,417.20/x
  3. Step 3: Cross multiply
    880,455.60x = 1,320,100.20 × 319,417.20
  4. Step 4: Simplify right side
    880,455.60x = 421,662,709,603.44
  5. Step 5: Solve for x
    x = 421,662,709,603.44/880,455.60
  6. Step 6: Final answer
    x = 478,914.22

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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.