Home / 989,043.60-1,482,917.40-389,643.60

Finding the Fourth Proportional to 989,043.60, 1,482,917.40 and 389,643.60

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Solution

The fourth proportional to 989,043.60, 1,482,917.40 and 389,643.60 is: 584,210.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,043.60 : 1,482,917.40 = 389,643.60 : x
  2. Step 2: Convert to fraction form
    989,043.60/1,482,917.40 = 389,643.60/x
  3. Step 3: Cross multiply
    989,043.60x = 1,482,917.40 × 389,643.60
  4. Step 4: Simplify right side
    989,043.60x = 577,809,274,238.64
  5. Step 5: Solve for x
    x = 577,809,274,238.64/989,043.60
  6. Step 6: Final answer
    x = 584,210.11

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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.