Home / 870,050.89-1,200,814.54-507,474.74

Finding the Fourth Proportional to 870,050.89, 1,200,814.54 and 507,474.74

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Solution

The fourth proportional to 870,050.89, 1,200,814.54 and 507,474.74 is: 700,399.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,050.89 : 1,200,814.54 = 507,474.74 : x
  2. Step 2: Convert to fraction form
    870,050.89/1,200,814.54 = 507,474.74/x
  3. Step 3: Cross multiply
    870,050.89x = 1,200,814.54 × 507,474.74
  4. Step 4: Simplify right side
    870,050.89x = 609,383,048,208.07
  5. Step 5: Solve for x
    x = 609,383,048,208.07/870,050.89
  6. Step 6: Final answer
    x = 700,399.31

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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.