Home / 1,437,665.77-2,156,129.60-426,548.53

Finding the Fourth Proportional to 1,437,665.77, 2,156,129.60 and 426,548.53

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Solution

The fourth proportional to 1,437,665.77, 2,156,129.60 and 426,548.53 is: 639,713.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437,665.77 : 2,156,129.60 = 426,548.53 : x
  2. Step 2: Convert to fraction form
    1,437,665.77/2,156,129.60 = 426,548.53/x
  3. Step 3: Cross multiply
    1,437,665.77x = 2,156,129.60 × 426,548.53
  4. Step 4: Simplify right side
    1,437,665.77x = 919,693,911,369.49
  5. Step 5: Solve for x
    x = 919,693,911,369.49/1,437,665.77
  6. Step 6: Final answer
    x = 639,713.30

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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.