Home / 855,705.38-1,180,828.51-468,446.55

Finding the Fourth Proportional to 855,705.38, 1,180,828.51 and 468,446.55

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Solution

The fourth proportional to 855,705.38, 1,180,828.51 and 468,446.55 is: 646,431.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,705.38 : 1,180,828.51 = 468,446.55 : x
  2. Step 2: Convert to fraction form
    855,705.38/1,180,828.51 = 468,446.55/x
  3. Step 3: Cross multiply
    855,705.38x = 1,180,828.51 × 468,446.55
  4. Step 4: Simplify right side
    855,705.38x = 553,155,045,329.09
  5. Step 5: Solve for x
    x = 553,155,045,329.09/855,705.38
  6. Step 6: Final answer
    x = 646,431.66

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1.5x scale

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.