Home / 1,672,129.96-2,507,899.56-660,915.76

Finding the Fourth Proportional to 1,672,129.96, 2,507,899.56 and 660,915.76

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Solution

The fourth proportional to 1,672,129.96, 2,507,899.56 and 660,915.76 is: 991,256.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672,129.96 : 2,507,899.56 = 660,915.76 : x
  2. Step 2: Convert to fraction form
    1,672,129.96/2,507,899.56 = 660,915.76/x
  3. Step 3: Cross multiply
    1,672,129.96x = 2,507,899.56 × 660,915.76
  4. Step 4: Simplify right side
    1,672,129.96x = 1,657,510,343,701.07
  5. Step 5: Solve for x
    x = 1,657,510,343,701.07/1,672,129.96
  6. Step 6: Final answer
    x = 991,256.89

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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.