Home / 862,617.60-1,190,401.92-480,643.20

Finding the Fourth Proportional to 862,617.60, 1,190,401.92 and 480,643.20

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Solution

The fourth proportional to 862,617.60, 1,190,401.92 and 480,643.20 is: 663,281.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,617.60 : 1,190,401.92 = 480,643.20 : x
  2. Step 2: Convert to fraction form
    862,617.60/1,190,401.92 = 480,643.20/x
  3. Step 3: Cross multiply
    862,617.60x = 1,190,401.92 × 480,643.20
  4. Step 4: Simplify right side
    862,617.60x = 572,158,588,114.94
  5. Step 5: Solve for x
    x = 572,158,588,114.94/862,617.60
  6. Step 6: Final answer
    x = 663,281.84

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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.