Home / 742,502.70-1,024,654.86-402,971.76

Finding the Fourth Proportional to 742,502.70, 1,024,654.86 and 402,971.76

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Solution

The fourth proportional to 742,502.70, 1,024,654.86 and 402,971.76 is: 556,101.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,502.70 : 1,024,654.86 = 402,971.76 : x
  2. Step 2: Convert to fraction form
    742,502.70/1,024,654.86 = 402,971.76/x
  3. Step 3: Cross multiply
    742,502.70x = 1,024,654.86 × 402,971.76
  4. Step 4: Simplify right side
    742,502.70x = 412,906,972,326.75
  5. Step 5: Solve for x
    x = 412,906,972,326.75/742,502.70
  6. Step 6: Final answer
    x = 556,101.64

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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.