Home / 730,504.04-1,007,800.80-485,607.21

Finding the Fourth Proportional to 730,504.04, 1,007,800.80 and 485,607.21

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Solution

The fourth proportional to 730,504.04, 1,007,800.80 and 485,607.21 is: 669,942.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,504.04 : 1,007,800.80 = 485,607.21 : x
  2. Step 2: Convert to fraction form
    730,504.04/1,007,800.80 = 485,607.21/x
  3. Step 3: Cross multiply
    730,504.04x = 1,007,800.80 × 485,607.21
  4. Step 4: Simplify right side
    730,504.04x = 489,395,334,723.77
  5. Step 5: Solve for x
    x = 489,395,334,723.77/730,504.04
  6. Step 6: Final answer
    x = 669,942.00

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Double scale
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Similar ratio
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1.5x scale

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.