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Finding the Fourth Proportional to 610,305.16, 915,984.78 and 423,447.88

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Solution

The fourth proportional to 610,305.16, 915,984.78 and 423,447.88 is: 635,537.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,305.16 : 915,984.78 = 423,447.88 : x
  2. Step 2: Convert to fraction form
    610,305.16/915,984.78 = 423,447.88/x
  3. Step 3: Cross multiply
    610,305.16x = 915,984.78 × 423,447.88
  4. Step 4: Simplify right side
    610,305.16x = 387,871,813,203.27
  5. Step 5: Solve for x
    x = 387,871,813,203.27/610,305.16
  6. Step 6: Final answer
    x = 635,537.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.