Home / 1,421,031.56-1,961,037.30-776,451.72

Finding the Fourth Proportional to 1,421,031.56, 1,961,037.30 and 776,451.72

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Solution

The fourth proportional to 1,421,031.56, 1,961,037.30 and 776,451.72 is: 1,071,510.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,031.56 : 1,961,037.30 = 776,451.72 : x
  2. Step 2: Convert to fraction form
    1,421,031.56/1,961,037.30 = 776,451.72/x
  3. Step 3: Cross multiply
    1,421,031.56x = 1,961,037.30 × 776,451.72
  4. Step 4: Simplify right side
    1,421,031.56x = 1,522,650,784,569.16
  5. Step 5: Solve for x
    x = 1,522,650,784,569.16/1,421,031.56
  6. Step 6: Final answer
    x = 1,071,510.89

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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.