Home / 428,988.69-592,090.56-247,730.13

Finding the Fourth Proportional to 428,988.69, 592,090.56 and 247,730.13

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Solution

The fourth proportional to 428,988.69, 592,090.56 and 247,730.13 is: 341,917.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,988.69 : 592,090.56 = 247,730.13 : x
  2. Step 2: Convert to fraction form
    428,988.69/592,090.56 = 247,730.13/x
  3. Step 3: Cross multiply
    428,988.69x = 592,090.56 × 247,730.13
  4. Step 4: Simplify right side
    428,988.69x = 146,678,671,400.57
  5. Step 5: Solve for x
    x = 146,678,671,400.57/428,988.69
  6. Step 6: Final answer
    x = 341,917.34

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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.