Home / 450,182.08-621,442.56-280,500.04

Finding the Fourth Proportional to 450,182.08, 621,442.56 and 280,500.04

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Solution

The fourth proportional to 450,182.08, 621,442.56 and 280,500.04 is: 387,209.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,182.08 : 621,442.56 = 280,500.04 : x
  2. Step 2: Convert to fraction form
    450,182.08/621,442.56 = 280,500.04/x
  3. Step 3: Cross multiply
    450,182.08x = 621,442.56 × 280,500.04
  4. Step 4: Simplify right side
    450,182.08x = 174,314,662,937.70
  5. Step 5: Solve for x
    x = 174,314,662,937.70/450,182.08
  6. Step 6: Final answer
    x = 387,209.24

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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.