Home / 987,913.40-1,363,321.89-535,204.40

Finding the Fourth Proportional to 987,913.40, 1,363,321.89 and 535,204.40

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Solution

The fourth proportional to 987,913.40, 1,363,321.89 and 535,204.40 is: 738,582.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,913.40 : 1,363,321.89 = 535,204.40 : x
  2. Step 2: Convert to fraction form
    987,913.40/1,363,321.89 = 535,204.40/x
  3. Step 3: Cross multiply
    987,913.40x = 1,363,321.89 × 535,204.40
  4. Step 4: Simplify right side
    987,913.40x = 729,655,867,327.71
  5. Step 5: Solve for x
    x = 729,655,867,327.71/987,913.40
  6. Step 6: Final answer
    x = 738,582.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.