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Finding the Fourth Proportional to 890,361, 1,228,720.76 and 546,386.92

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Solution

The fourth proportional to 890,361, 1,228,720.76 and 546,386.92 is: 754,027.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,361 : 1,228,720.76 = 546,386.92 : x
  2. Step 2: Convert to fraction form
    890,361/1,228,720.76 = 546,386.92/x
  3. Step 3: Cross multiply
    890,361x = 1,228,720.76 × 546,386.92
  4. Step 4: Simplify right side
    890,361x = 671,356,951,596.46
  5. Step 5: Solve for x
    x = 671,356,951,596.46/890,361
  6. Step 6: Final answer
    x = 754,027.81

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1.5x scale

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.