Home / 912,003.20-1,368,004.80-607,572.80

Finding the Fourth Proportional to 912,003.20, 1,368,004.80 and 607,572.80

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Solution

The fourth proportional to 912,003.20, 1,368,004.80 and 607,572.80 is: 911,359.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,003.20 : 1,368,004.80 = 607,572.80 : x
  2. Step 2: Convert to fraction form
    912,003.20/1,368,004.80 = 607,572.80/x
  3. Step 3: Cross multiply
    912,003.20x = 1,368,004.80 × 607,572.80
  4. Step 4: Simplify right side
    912,003.20x = 831,162,506,749.44
  5. Step 5: Solve for x
    x = 831,162,506,749.44/912,003.20
  6. Step 6: Final answer
    x = 911,359.20

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Double scale
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Similar ratio
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1.5x scale

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.