Home / 1,059,176.80-1,587,728.40-427,247.20

Finding the Fourth Proportional to 1,059,176.80, 1,587,728.40 and 427,247.20

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Solution

The fourth proportional to 1,059,176.80, 1,587,728.40 and 427,247.20 is: 640,452.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,059,176.80 : 1,587,728.40 = 427,247.20 : x
  2. Step 2: Convert to fraction form
    1,059,176.80/1,587,728.40 = 427,247.20/x
  3. Step 3: Cross multiply
    1,059,176.80x = 1,587,728.40 × 427,247.20
  4. Step 4: Simplify right side
    1,059,176.80x = 678,352,513,260.48
  5. Step 5: Solve for x
    x = 678,352,513,260.48/1,059,176.80
  6. Step 6: Final answer
    x = 640,452.58

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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.