Home / 730,108.40-1,007,538.90-407,822.90

Finding the Fourth Proportional to 730,108.40, 1,007,538.90 and 407,822.90

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Solution

The fourth proportional to 730,108.40, 1,007,538.90 and 407,822.90 is: 562,789.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,108.40 : 1,007,538.90 = 407,822.90 : x
  2. Step 2: Convert to fraction form
    730,108.40/1,007,538.90 = 407,822.90/x
  3. Step 3: Cross multiply
    730,108.40x = 1,007,538.90 × 407,822.90
  4. Step 4: Simplify right side
    730,108.40x = 410,897,436,060.81
  5. Step 5: Solve for x
    x = 410,897,436,060.81/730,108.40
  6. Step 6: Final answer
    x = 562,789.63

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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.