Home / 1,415,788.74-1,953,778.41-771,208.92

Finding the Fourth Proportional to 1,415,788.74, 1,953,778.41 and 771,208.92

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Solution

The fourth proportional to 1,415,788.74, 1,953,778.41 and 771,208.92 is: 1,064,262.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,788.74 : 1,953,778.41 = 771,208.92 : x
  2. Step 2: Convert to fraction form
    1,415,788.74/1,953,778.41 = 771,208.92/x
  3. Step 3: Cross multiply
    1,415,788.74x = 1,953,778.41 × 771,208.92
  4. Step 4: Simplify right side
    1,415,788.74x = 1,506,771,337,495.42
  5. Step 5: Solve for x
    x = 1,506,771,337,495.42/1,415,788.74
  6. Step 6: Final answer
    x = 1,064,262.83

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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.