Home / 870,048.64-1,200,811.43-507,472.49

Finding the Fourth Proportional to 870,048.64, 1,200,811.43 and 507,472.49

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Solution

The fourth proportional to 870,048.64, 1,200,811.43 and 507,472.49 is: 700,396.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,048.64 : 1,200,811.43 = 507,472.49 : x
  2. Step 2: Convert to fraction form
    870,048.64/1,200,811.43 = 507,472.49/x
  3. Step 3: Cross multiply
    870,048.64x = 1,200,811.43 × 507,472.49
  4. Step 4: Simplify right side
    870,048.64x = 609,378,770,673.27
  5. Step 5: Solve for x
    x = 609,378,770,673.27/870,048.64
  6. Step 6: Final answer
    x = 700,396.21

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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.