Home / 1,315,501.52-1,815,392.04-711,889.52

Finding the Fourth Proportional to 1,315,501.52, 1,815,392.04 and 711,889.52

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Solution

The fourth proportional to 1,315,501.52, 1,815,392.04 and 711,889.52 is: 982,407.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,501.52 : 1,815,392.04 = 711,889.52 : x
  2. Step 2: Convert to fraction form
    1,315,501.52/1,815,392.04 = 711,889.52/x
  3. Step 3: Cross multiply
    1,315,501.52x = 1,815,392.04 × 711,889.52
  4. Step 4: Simplify right side
    1,315,501.52x = 1,292,358,567,967.42
  5. Step 5: Solve for x
    x = 1,292,358,567,967.42/1,315,501.52
  6. Step 6: Final answer
    x = 982,407.51

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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.