Home / 870,833.85-1,201,765.56-478,383.35

Finding the Fourth Proportional to 870,833.85, 1,201,765.56 and 478,383.35

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Solution

The fourth proportional to 870,833.85, 1,201,765.56 and 478,383.35 is: 660,177.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,833.85 : 1,201,765.56 = 478,383.35 : x
  2. Step 2: Convert to fraction form
    870,833.85/1,201,765.56 = 478,383.35/x
  3. Step 3: Cross multiply
    870,833.85x = 1,201,765.56 × 478,383.35
  4. Step 4: Simplify right side
    870,833.85x = 574,904,631,430.08
  5. Step 5: Solve for x
    x = 574,904,631,430.08/870,833.85
  6. Step 6: Final answer
    x = 660,177.18

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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.