Home / 1,312,675.32-1,968,557.56-459,728.14

Finding the Fourth Proportional to 1,312,675.32, 1,968,557.56 and 459,728.14

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Solution

The fourth proportional to 1,312,675.32, 1,968,557.56 and 459,728.14 is: 689,432.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,675.32 : 1,968,557.56 = 459,728.14 : x
  2. Step 2: Convert to fraction form
    1,312,675.32/1,968,557.56 = 459,728.14/x
  3. Step 3: Cross multiply
    1,312,675.32x = 1,968,557.56 × 459,728.14
  4. Step 4: Simplify right side
    1,312,675.32x = 905,001,305,541.74
  5. Step 5: Solve for x
    x = 905,001,305,541.74/1,312,675.32
  6. Step 6: Final answer
    x = 689,432.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.