Home / 1,275,917.53-1,913,812.69-477,140.35

Finding the Fourth Proportional to 1,275,917.53, 1,913,812.69 and 477,140.35

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Solution

The fourth proportional to 1,275,917.53, 1,913,812.69 and 477,140.35 is: 715,686.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,917.53 : 1,913,812.69 = 477,140.35 : x
  2. Step 2: Convert to fraction form
    1,275,917.53/1,913,812.69 = 477,140.35/x
  3. Step 3: Cross multiply
    1,275,917.53x = 1,913,812.69 × 477,140.35
  4. Step 4: Simplify right side
    1,275,917.53x = 913,157,256,741.04
  5. Step 5: Solve for x
    x = 913,157,256,741.04/1,275,917.53
  6. Step 6: Final answer
    x = 715,686.74

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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.