Home / 1,128,047.40-1,692,071.10-792,124.20

Finding the Fourth Proportional to 1,128,047.40, 1,692,071.10 and 792,124.20

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Solution

The fourth proportional to 1,128,047.40, 1,692,071.10 and 792,124.20 is: 1,188,186.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,047.40 : 1,692,071.10 = 792,124.20 : x
  2. Step 2: Convert to fraction form
    1,128,047.40/1,692,071.10 = 792,124.20/x
  3. Step 3: Cross multiply
    1,128,047.40x = 1,692,071.10 × 792,124.20
  4. Step 4: Simplify right side
    1,128,047.40x = 1,340,330,466,430.62
  5. Step 5: Solve for x
    x = 1,340,330,466,430.62/1,128,047.40
  6. Step 6: Final answer
    x = 1,188,186.30

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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.