Home / 720,312.90-1,081,147.32-365,581.50

Finding the Fourth Proportional to 720,312.90, 1,081,147.32 and 365,581.50

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Solution

The fourth proportional to 720,312.90, 1,081,147.32 and 365,581.50 is: 548,716.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,312.90 : 1,081,147.32 = 365,581.50 : x
  2. Step 2: Convert to fraction form
    720,312.90/1,081,147.32 = 365,581.50/x
  3. Step 3: Cross multiply
    720,312.90x = 1,081,147.32 × 365,581.50
  4. Step 4: Simplify right side
    720,312.90x = 395,247,458,966.58
  5. Step 5: Solve for x
    x = 395,247,458,966.58/720,312.90
  6. Step 6: Final answer
    x = 548,716.34

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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.