Home / 900,457.20-1,348,399.68-540,401.40

Finding the Fourth Proportional to 900,457.20, 1,348,399.68 and 540,401.40

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Solution

The fourth proportional to 900,457.20, 1,348,399.68 and 540,401.40 is: 809,230.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,457.20 : 1,348,399.68 = 540,401.40 : x
  2. Step 2: Convert to fraction form
    900,457.20/1,348,399.68 = 540,401.40/x
  3. Step 3: Cross multiply
    900,457.20x = 1,348,399.68 × 540,401.40
  4. Step 4: Simplify right side
    900,457.20x = 728,677,074,831.55
  5. Step 5: Solve for x
    x = 728,677,074,831.55/900,457.20
  6. Step 6: Final answer
    x = 809,230.11

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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.