Home / 1,420,120.60-2,130,191.70-473,489.80

Finding the Fourth Proportional to 1,420,120.60, 2,130,191.70 and 473,489.80

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Solution

The fourth proportional to 1,420,120.60, 2,130,191.70 and 473,489.80 is: 710,238.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,120.60 : 2,130,191.70 = 473,489.80 : x
  2. Step 2: Convert to fraction form
    1,420,120.60/2,130,191.70 = 473,489.80/x
  3. Step 3: Cross multiply
    1,420,120.60x = 2,130,191.70 × 473,489.80
  4. Step 4: Simplify right side
    1,420,120.60x = 1,008,624,041,994.66
  5. Step 5: Solve for x
    x = 1,008,624,041,994.66/1,420,120.60
  6. Step 6: Final answer
    x = 710,238.30

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Double scale
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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.