Home / 987,913.85-1,363,312.55-535,203.77

Finding the Fourth Proportional to 987,913.85, 1,363,312.55 and 535,203.77

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Solution

The fourth proportional to 987,913.85, 1,363,312.55 and 535,203.77 is: 738,576.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,913.85 : 1,363,312.55 = 535,203.77 : x
  2. Step 2: Convert to fraction form
    987,913.85/1,363,312.55 = 535,203.77/x
  3. Step 3: Cross multiply
    987,913.85x = 1,363,312.55 × 535,203.77
  4. Step 4: Simplify right side
    987,913.85x = 729,650,010,969.76
  5. Step 5: Solve for x
    x = 729,650,010,969.76/987,913.85
  6. Step 6: Final answer
    x = 738,576.56

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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.