Home / 870,241.85-1,305,630.02-415,413.46

Finding the Fourth Proportional to 870,241.85, 1,305,630.02 and 415,413.46

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Solution

The fourth proportional to 870,241.85, 1,305,630.02 and 415,413.46 is: 623,247.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,241.85 : 1,305,630.02 = 415,413.46 : x
  2. Step 2: Convert to fraction form
    870,241.85/1,305,630.02 = 415,413.46/x
  3. Step 3: Cross multiply
    870,241.85x = 1,305,630.02 × 415,413.46
  4. Step 4: Simplify right side
    870,241.85x = 542,376,287,352.14
  5. Step 5: Solve for x
    x = 542,376,287,352.14/870,241.85
  6. Step 6: Final answer
    x = 623,247.77

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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.