Home / 870,681.48-1,201,474.56-488,634.45

Finding the Fourth Proportional to 870,681.48, 1,201,474.56 and 488,634.45

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Solution

The fourth proportional to 870,681.48, 1,201,474.56 and 488,634.45 is: 674,278.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,681.48 : 1,201,474.56 = 488,634.45 : x
  2. Step 2: Convert to fraction form
    870,681.48/1,201,474.56 = 488,634.45/x
  3. Step 3: Cross multiply
    870,681.48x = 1,201,474.56 × 488,634.45
  4. Step 4: Simplify right side
    870,681.48x = 587,081,860,814.59
  5. Step 5: Solve for x
    x = 587,081,860,814.59/870,681.48
  6. Step 6: Final answer
    x = 674,278.57

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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.