Home / 870,872.96-1,201,803.80-488,900.46

Finding the Fourth Proportional to 870,872.96, 1,201,803.80 and 488,900.46

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Solution

The fourth proportional to 870,872.96, 1,201,803.80 and 488,900.46 is: 674,682.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,872.96 : 1,201,803.80 = 488,900.46 : x
  2. Step 2: Convert to fraction form
    870,872.96/1,201,803.80 = 488,900.46/x
  3. Step 3: Cross multiply
    870,872.96x = 1,201,803.80 × 488,900.46
  4. Step 4: Simplify right side
    870,872.96x = 587,562,430,649.75
  5. Step 5: Solve for x
    x = 587,562,430,649.75/870,872.96
  6. Step 6: Final answer
    x = 674,682.14

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1.5x scale

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.