Home / 1,500,217.96-2,070,307.38-811,889.92

Finding the Fourth Proportional to 1,500,217.96, 2,070,307.38 and 811,889.92

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Solution

The fourth proportional to 1,500,217.96, 2,070,307.38 and 811,889.92 is: 1,120,411.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,217.96 : 2,070,307.38 = 811,889.92 : x
  2. Step 2: Convert to fraction form
    1,500,217.96/2,070,307.38 = 811,889.92/x
  3. Step 3: Cross multiply
    1,500,217.96x = 2,070,307.38 × 811,889.92
  4. Step 4: Simplify right side
    1,500,217.96x = 1,680,861,693,123.61
  5. Step 5: Solve for x
    x = 1,680,861,693,123.61/1,500,217.96
  6. Step 6: Final answer
    x = 1,120,411.66

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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.