Home / 810,020.70-1,215,031.05-436,772.70

Finding the Fourth Proportional to 810,020.70, 1,215,031.05 and 436,772.70

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Solution

The fourth proportional to 810,020.70, 1,215,031.05 and 436,772.70 is: 655,159.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,020.70 : 1,215,031.05 = 436,772.70 : x
  2. Step 2: Convert to fraction form
    810,020.70/1,215,031.05 = 436,772.70/x
  3. Step 3: Cross multiply
    810,020.70x = 1,215,031.05 × 436,772.70
  4. Step 4: Simplify right side
    810,020.70x = 530,692,392,292.34
  5. Step 5: Solve for x
    x = 530,692,392,292.34/810,020.70
  6. Step 6: Final answer
    x = 655,159.05

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Similar ratio
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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.