Home / 915,529.50-1,263,445.92-507,648.56

Finding the Fourth Proportional to 915,529.50, 1,263,445.92 and 507,648.56

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Solution

The fourth proportional to 915,529.50, 1,263,445.92 and 507,648.56 is: 700,563.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,529.50 : 1,263,445.92 = 507,648.56 : x
  2. Step 2: Convert to fraction form
    915,529.50/1,263,445.92 = 507,648.56/x
  3. Step 3: Cross multiply
    915,529.50x = 1,263,445.92 × 507,648.56
  4. Step 4: Simplify right side
    915,529.50x = 641,386,495,608.65
  5. Step 5: Solve for x
    x = 641,386,495,608.65/915,529.50
  6. Step 6: Final answer
    x = 700,563.44

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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.