Home / 890,486.40-1,335,859.20-291,302.40

Finding the Fourth Proportional to 890,486.40, 1,335,859.20 and 291,302.40

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Solution

The fourth proportional to 890,486.40, 1,335,859.20 and 291,302.40 is: 436,996.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,486.40 : 1,335,859.20 = 291,302.40 : x
  2. Step 2: Convert to fraction form
    890,486.40/1,335,859.20 = 291,302.40/x
  3. Step 3: Cross multiply
    890,486.40x = 1,335,859.20 × 291,302.40
  4. Step 4: Simplify right side
    890,486.40x = 389,138,991,022.08
  5. Step 5: Solve for x
    x = 389,138,991,022.08/890,486.40
  6. Step 6: Final answer
    x = 436,996.00

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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.