Home / 783,280.40-1,174,920.60-730,403.60

Finding the Fourth Proportional to 783,280.40, 1,174,920.60 and 730,403.60

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Solution

The fourth proportional to 783,280.40, 1,174,920.60 and 730,403.60 is: 1,095,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,280.40 : 1,174,920.60 = 730,403.60 : x
  2. Step 2: Convert to fraction form
    783,280.40/1,174,920.60 = 730,403.60/x
  3. Step 3: Cross multiply
    783,280.40x = 1,174,920.60 × 730,403.60
  4. Step 4: Simplify right side
    783,280.40x = 858,166,235,954.16
  5. Step 5: Solve for x
    x = 858,166,235,954.16/783,280.40
  6. Step 6: Final answer
    x = 1,095,605.40

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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.