Home / 710,979.79-1,066,470.77-284,707.57

Finding the Fourth Proportional to 710,979.79, 1,066,470.77 and 284,707.57

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Solution

The fourth proportional to 710,979.79, 1,066,470.77 and 284,707.57 is: 427,061.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,979.79 : 1,066,470.77 = 284,707.57 : x
  2. Step 2: Convert to fraction form
    710,979.79/1,066,470.77 = 284,707.57/x
  3. Step 3: Cross multiply
    710,979.79x = 1,066,470.77 × 284,707.57
  4. Step 4: Simplify right side
    710,979.79x = 303,632,301,402.73
  5. Step 5: Solve for x
    x = 303,632,301,402.73/710,979.79
  6. Step 6: Final answer
    x = 427,061.79

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.