Home / 1,187,564.20-1,781,346.30-963,615.40

Finding the Fourth Proportional to 1,187,564.20, 1,781,346.30 and 963,615.40

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Solution

The fourth proportional to 1,187,564.20, 1,781,346.30 and 963,615.40 is: 1,445,423.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,564.20 : 1,781,346.30 = 963,615.40 : x
  2. Step 2: Convert to fraction form
    1,187,564.20/1,781,346.30 = 963,615.40/x
  3. Step 3: Cross multiply
    1,187,564.20x = 1,781,346.30 × 963,615.40
  4. Step 4: Simplify right side
    1,187,564.20x = 1,716,532,727,413.02
  5. Step 5: Solve for x
    x = 1,716,532,727,413.02/1,187,564.20
  6. Step 6: Final answer
    x = 1,445,423.10

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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.