Home / 289,331.60-433,997.40-286,707.20

Finding the Fourth Proportional to 289,331.60, 433,997.40 and 286,707.20

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Solution

The fourth proportional to 289,331.60, 433,997.40 and 286,707.20 is: 430,060.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,331.60 : 433,997.40 = 286,707.20 : x
  2. Step 2: Convert to fraction form
    289,331.60/433,997.40 = 286,707.20/x
  3. Step 3: Cross multiply
    289,331.60x = 433,997.40 × 286,707.20
  4. Step 4: Simplify right side
    289,331.60x = 124,430,179,361.28
  5. Step 5: Solve for x
    x = 124,430,179,361.28/289,331.60
  6. Step 6: Final answer
    x = 430,060.80

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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.