Home / 1,255,401.72-1,732,417.92-711,587.64

Finding the Fourth Proportional to 1,255,401.72, 1,732,417.92 and 711,587.64

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Solution

The fourth proportional to 1,255,401.72, 1,732,417.92 and 711,587.64 is: 981,970.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,401.72 : 1,732,417.92 = 711,587.64 : x
  2. Step 2: Convert to fraction form
    1,255,401.72/1,732,417.92 = 711,587.64/x
  3. Step 3: Cross multiply
    1,255,401.72x = 1,732,417.92 × 711,587.64
  4. Step 4: Simplify right side
    1,255,401.72x = 1,232,767,179,186.51
  5. Step 5: Solve for x
    x = 1,232,767,179,186.51/1,255,401.72
  6. Step 6: Final answer
    x = 981,970.28

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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.