Home / 915,766.72-1,263,822.84-507,907.42

Finding the Fourth Proportional to 915,766.72, 1,263,822.84 and 507,907.42

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Solution

The fourth proportional to 915,766.72, 1,263,822.84 and 507,907.42 is: 700,948.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,766.72 : 1,263,822.84 = 507,907.42 : x
  2. Step 2: Convert to fraction form
    915,766.72/1,263,822.84 = 507,907.42/x
  3. Step 3: Cross multiply
    915,766.72x = 1,263,822.84 × 507,907.42
  4. Step 4: Simplify right side
    915,766.72x = 641,904,998,001.47
  5. Step 5: Solve for x
    x = 641,904,998,001.47/915,766.72
  6. Step 6: Final answer
    x = 700,948.16

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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.