Home / 1,011,261.52-1,516,305.43-478,778.05

Finding the Fourth Proportional to 1,011,261.52, 1,516,305.43 and 478,778.05

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Solution

The fourth proportional to 1,011,261.52, 1,516,305.43 and 478,778.05 is: 717,889.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,261.52 : 1,516,305.43 = 478,778.05 : x
  2. Step 2: Convert to fraction form
    1,011,261.52/1,516,305.43 = 478,778.05/x
  3. Step 3: Cross multiply
    1,011,261.52x = 1,516,305.43 × 478,778.05
  4. Step 4: Simplify right side
    1,011,261.52x = 725,973,756,979.81
  5. Step 5: Solve for x
    x = 725,973,756,979.81/1,011,261.52
  6. Step 6: Final answer
    x = 717,889.23

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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.