Home / 671,685.30-1,008,305.55-405,746.10

Finding the Fourth Proportional to 671,685.30, 1,008,305.55 and 405,746.10

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Solution

The fourth proportional to 671,685.30, 1,008,305.55 and 405,746.10 is: 609,088.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,685.30 : 1,008,305.55 = 405,746.10 : x
  2. Step 2: Convert to fraction form
    671,685.30/1,008,305.55 = 405,746.10/x
  3. Step 3: Cross multiply
    671,685.30x = 1,008,305.55 × 405,746.10
  4. Step 4: Simplify right side
    671,685.30x = 409,116,044,520.86
  5. Step 5: Solve for x
    x = 409,116,044,520.86/671,685.30
  6. Step 6: Final answer
    x = 609,088.88

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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.