Home / 451,948.10-623,980.55-280,048.48

Finding the Fourth Proportional to 451,948.10, 623,980.55 and 280,048.48

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Solution

The fourth proportional to 451,948.10, 623,980.55 and 280,048.48 is: 386,647.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,948.10 : 623,980.55 = 280,048.48 : x
  2. Step 2: Convert to fraction form
    451,948.10/623,980.55 = 280,048.48/x
  3. Step 3: Cross multiply
    451,948.10x = 623,980.55 × 280,048.48
  4. Step 4: Simplify right side
    451,948.10x = 174,744,804,577.06
  5. Step 5: Solve for x
    x = 174,744,804,577.06/451,948.10
  6. Step 6: Final answer
    x = 386,647.95

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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.