Home / 870,909.96-1,201,854.87-488,937.45

Finding the Fourth Proportional to 870,909.96, 1,201,854.87 and 488,937.45

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Solution

The fourth proportional to 870,909.96, 1,201,854.87 and 488,937.45 is: 674,733.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,909.96 : 1,201,854.87 = 488,937.45 : x
  2. Step 2: Convert to fraction form
    870,909.96/1,201,854.87 = 488,937.45/x
  3. Step 3: Cross multiply
    870,909.96x = 1,201,854.87 × 488,937.45
  4. Step 4: Simplify right side
    870,909.96x = 587,631,855,407.88
  5. Step 5: Solve for x
    x = 587,631,855,407.88/870,909.96
  6. Step 6: Final answer
    x = 674,733.19

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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.