Home / 1,437,718.40-2,156,208.42-426,601.20

Finding the Fourth Proportional to 1,437,718.40, 2,156,208.42 and 426,601.20

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Solution

The fourth proportional to 1,437,718.40, 2,156,208.42 and 426,601.20 is: 639,792.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437,718.40 : 2,156,208.42 = 426,601.20 : x
  2. Step 2: Convert to fraction form
    1,437,718.40/2,156,208.42 = 426,601.20/x
  3. Step 3: Cross multiply
    1,437,718.40x = 2,156,208.42 × 426,601.20
  4. Step 4: Simplify right side
    1,437,718.40x = 919,841,099,422.10
  5. Step 5: Solve for x
    x = 919,841,099,422.10/1,437,718.40
  6. Step 6: Final answer
    x = 639,792.26

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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.