Home / 870,478.56-1,201,261.08-488,505.33

Finding the Fourth Proportional to 870,478.56, 1,201,261.08 and 488,505.33

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Solution

The fourth proportional to 870,478.56, 1,201,261.08 and 488,505.33 is: 674,137.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,478.56 : 1,201,261.08 = 488,505.33 : x
  2. Step 2: Convert to fraction form
    870,478.56/1,201,261.08 = 488,505.33/x
  3. Step 3: Cross multiply
    870,478.56x = 1,201,261.08 × 488,505.33
  4. Step 4: Simplify right side
    870,478.56x = 586,822,440,301.56
  5. Step 5: Solve for x
    x = 586,822,440,301.56/870,478.56
  6. Step 6: Final answer
    x = 674,137.73

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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.