Home / 721,881.60-1,084,426.20-603,783.60

Finding the Fourth Proportional to 721,881.60, 1,084,426.20 and 603,783.60

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Solution

The fourth proportional to 721,881.60, 1,084,426.20 and 603,783.60 is: 907,016.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,881.60 : 1,084,426.20 = 603,783.60 : x
  2. Step 2: Convert to fraction form
    721,881.60/1,084,426.20 = 603,783.60/x
  3. Step 3: Cross multiply
    721,881.60x = 1,084,426.20 × 603,783.60
  4. Step 4: Simplify right side
    721,881.60x = 654,758,754,970.32
  5. Step 5: Solve for x
    x = 654,758,754,970.32/721,881.60
  6. Step 6: Final answer
    x = 907,016.82

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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.