Home / 870,224.95-1,200,986.42-507,765.58

Finding the Fourth Proportional to 870,224.95, 1,200,986.42 and 507,765.58

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Solution

The fourth proportional to 870,224.95, 1,200,986.42 and 507,765.58 is: 700,760.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,224.95 : 1,200,986.42 = 507,765.58 : x
  2. Step 2: Convert to fraction form
    870,224.95/1,200,986.42 = 507,765.58/x
  3. Step 3: Cross multiply
    870,224.95x = 1,200,986.42 × 507,765.58
  4. Step 4: Simplify right side
    870,224.95x = 609,819,562,486.25
  5. Step 5: Solve for x
    x = 609,819,562,486.25/870,224.95
  6. Step 6: Final answer
    x = 700,760.84

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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.