Home / 1,500,213.49-2,070,301.21-811,885.46

Finding the Fourth Proportional to 1,500,213.49, 2,070,301.21 and 811,885.46

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Solution

The fourth proportional to 1,500,213.49, 2,070,301.21 and 811,885.46 is: 1,120,405.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,213.49 : 2,070,301.21 = 811,885.46 : x
  2. Step 2: Convert to fraction form
    1,500,213.49/2,070,301.21 = 811,885.46/x
  3. Step 3: Cross multiply
    1,500,213.49x = 2,070,301.21 × 811,885.46
  4. Step 4: Simplify right side
    1,500,213.49x = 1,680,847,437,838.19
  5. Step 5: Solve for x
    x = 1,680,847,437,838.19/1,500,213.49
  6. Step 6: Final answer
    x = 1,120,405.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.