Home / 1,439,294.16-2,158,564.46-428,143.89

Finding the Fourth Proportional to 1,439,294.16, 2,158,564.46 and 428,143.89

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Solution

The fourth proportional to 1,439,294.16, 2,158,564.46 and 428,143.89 is: 642,103.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,294.16 : 2,158,564.46 = 428,143.89 : x
  2. Step 2: Convert to fraction form
    1,439,294.16/2,158,564.46 = 428,143.89/x
  3. Step 3: Cross multiply
    1,439,294.16x = 2,158,564.46 × 428,143.89
  4. Step 4: Simplify right side
    1,439,294.16x = 924,176,182,579.43
  5. Step 5: Solve for x
    x = 924,176,182,579.43/1,439,294.16
  6. Step 6: Final answer
    x = 642,103.75

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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.