Home / 890,254.40-1,335,349.20-357,630.80

Finding the Fourth Proportional to 890,254.40, 1,335,349.20 and 357,630.80

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Solution

The fourth proportional to 890,254.40, 1,335,349.20 and 357,630.80 is: 536,433.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,254.40 : 1,335,349.20 = 357,630.80 : x
  2. Step 2: Convert to fraction form
    890,254.40/1,335,349.20 = 357,630.80/x
  3. Step 3: Cross multiply
    890,254.40x = 1,335,349.20 × 357,630.80
  4. Step 4: Simplify right side
    890,254.40x = 477,562,002,675.36
  5. Step 5: Solve for x
    x = 477,562,002,675.36/890,254.40
  6. Step 6: Final answer
    x = 536,433.18

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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.