Home / 778,643.04-1,074,553.20-451,931.60

Finding the Fourth Proportional to 778,643.04, 1,074,553.20 and 451,931.60

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Solution

The fourth proportional to 778,643.04, 1,074,553.20 and 451,931.60 is: 623,680.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,643.04 : 1,074,553.20 = 451,931.60 : x
  2. Step 2: Convert to fraction form
    778,643.04/1,074,553.20 = 451,931.60/x
  3. Step 3: Cross multiply
    778,643.04x = 1,074,553.20 × 451,931.60
  4. Step 4: Simplify right side
    778,643.04x = 485,624,546,961.12
  5. Step 5: Solve for x
    x = 485,624,546,961.12/778,643.04
  6. Step 6: Final answer
    x = 623,680.59

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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.