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Finding the Fourth Proportional to 870,480.84, 1,201,270.59 and 488,597.70

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Solution

The fourth proportional to 870,480.84, 1,201,270.59 and 488,597.70 is: 674,268.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,480.84 : 1,201,270.59 = 488,597.70 : x
  2. Step 2: Convert to fraction form
    870,480.84/1,201,270.59 = 488,597.70/x
  3. Step 3: Cross multiply
    870,480.84x = 1,201,270.59 × 488,597.70
  4. Step 4: Simplify right side
    870,480.84x = 586,938,047,351.64
  5. Step 5: Solve for x
    x = 586,938,047,351.64/870,480.84
  6. Step 6: Final answer
    x = 674,268.77

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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.