Home / 1,427,068.81-1,970,388.33-918,656.92

Finding the Fourth Proportional to 1,427,068.81, 1,970,388.33 and 918,656.92

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Solution

The fourth proportional to 1,427,068.81, 1,970,388.33 and 918,656.92 is: 1,268,411.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,068.81 : 1,970,388.33 = 918,656.92 : x
  2. Step 2: Convert to fraction form
    1,427,068.81/1,970,388.33 = 918,656.92/x
  3. Step 3: Cross multiply
    1,427,068.81x = 1,970,388.33 × 918,656.92
  4. Step 4: Simplify right side
    1,427,068.81x = 1,810,110,874,441.74
  5. Step 5: Solve for x
    x = 1,810,110,874,441.74/1,427,068.81
  6. Step 6: Final answer
    x = 1,268,411.77

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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.