Home / 1,383,155.46-1,908,762.87-771,346.89

Finding the Fourth Proportional to 1,383,155.46, 1,908,762.87 and 771,346.89

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Solution

The fourth proportional to 1,383,155.46, 1,908,762.87 and 771,346.89 is: 1,064,463.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,155.46 : 1,908,762.87 = 771,346.89 : x
  2. Step 2: Convert to fraction form
    1,383,155.46/1,908,762.87 = 771,346.89/x
  3. Step 3: Cross multiply
    1,383,155.46x = 1,908,762.87 × 771,346.89
  4. Step 4: Simplify right side
    1,383,155.46x = 1,472,318,303,521.97
  5. Step 5: Solve for x
    x = 1,472,318,303,521.97/1,383,155.46
  6. Step 6: Final answer
    x = 1,064,463.36

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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.