Home / 776,386.50-1,071,429.78-436,854.75

Finding the Fourth Proportional to 776,386.50, 1,071,429.78 and 436,854.75

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Solution

The fourth proportional to 776,386.50, 1,071,429.78 and 436,854.75 is: 602,868.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,386.50 : 1,071,429.78 = 436,854.75 : x
  2. Step 2: Convert to fraction form
    776,386.50/1,071,429.78 = 436,854.75/x
  3. Step 3: Cross multiply
    776,386.50x = 1,071,429.78 × 436,854.75
  4. Step 4: Simplify right side
    776,386.50x = 468,059,188,684.46
  5. Step 5: Solve for x
    x = 468,059,188,684.46/776,386.50
  6. Step 6: Final answer
    x = 602,868.79

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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.