Home / 1,383,262.84-1,908,898.95-771,416.25

Finding the Fourth Proportional to 1,383,262.84, 1,908,898.95 and 771,416.25

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Solution

The fourth proportional to 1,383,262.84, 1,908,898.95 and 771,416.25 is: 1,064,552.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,262.84 : 1,908,898.95 = 771,416.25 : x
  2. Step 2: Convert to fraction form
    1,383,262.84/1,908,898.95 = 771,416.25/x
  3. Step 3: Cross multiply
    1,383,262.84x = 1,908,898.95 × 771,416.25
  4. Step 4: Simplify right side
    1,383,262.84x = 1,472,555,665,780.86
  5. Step 5: Solve for x
    x = 1,472,555,665,780.86/1,383,262.84
  6. Step 6: Final answer
    x = 1,064,552.32

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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.