Home / 1,435,905.60-2,153,839.20-438,638.40

Finding the Fourth Proportional to 1,435,905.60, 2,153,839.20 and 438,638.40

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Solution

The fourth proportional to 1,435,905.60, 2,153,839.20 and 438,638.40 is: 657,951.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,905.60 : 2,153,839.20 = 438,638.40 : x
  2. Step 2: Convert to fraction form
    1,435,905.60/2,153,839.20 = 438,638.40/x
  3. Step 3: Cross multiply
    1,435,905.60x = 2,153,839.20 × 438,638.40
  4. Step 4: Simplify right side
    1,435,905.60x = 944,756,580,545.28
  5. Step 5: Solve for x
    x = 944,756,580,545.28/1,435,905.60
  6. Step 6: Final answer
    x = 657,951.73

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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.