Home / 674,994.30-1,011,520.29-290,637.64

Finding the Fourth Proportional to 674,994.30, 1,011,520.29 and 290,637.64

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Solution

The fourth proportional to 674,994.30, 1,011,520.29 and 290,637.64 is: 435,538.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,994.30 : 1,011,520.29 = 290,637.64 : x
  2. Step 2: Convert to fraction form
    674,994.30/1,011,520.29 = 290,637.64/x
  3. Step 3: Cross multiply
    674,994.30x = 1,011,520.29 × 290,637.64
  4. Step 4: Simplify right side
    674,994.30x = 293,985,864,927.37
  5. Step 5: Solve for x
    x = 293,985,864,927.37/674,994.30
  6. Step 6: Final answer
    x = 435,538.30

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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.