Home / 980,103.76-1,352,501.28-572,228.20

Finding the Fourth Proportional to 980,103.76, 1,352,501.28 and 572,228.20

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Solution

The fourth proportional to 980,103.76, 1,352,501.28 and 572,228.20 is: 789,650.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,103.76 : 1,352,501.28 = 572,228.20 : x
  2. Step 2: Convert to fraction form
    980,103.76/1,352,501.28 = 572,228.20/x
  3. Step 3: Cross multiply
    980,103.76x = 1,352,501.28 × 572,228.20
  4. Step 4: Simplify right side
    980,103.76x = 773,939,372,952.10
  5. Step 5: Solve for x
    x = 773,939,372,952.10/980,103.76
  6. Step 6: Final answer
    x = 789,650.45

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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.