Home / 646,430.19-968,971.47-361,703.28

Finding the Fourth Proportional to 646,430.19, 968,971.47 and 361,703.28

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Solution

The fourth proportional to 646,430.19, 968,971.47 and 361,703.28 is: 542,177.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,430.19 : 968,971.47 = 361,703.28 : x
  2. Step 2: Convert to fraction form
    646,430.19/968,971.47 = 361,703.28/x
  3. Step 3: Cross multiply
    646,430.19x = 968,971.47 × 361,703.28
  4. Step 4: Simplify right side
    646,430.19x = 350,480,153,935.39
  5. Step 5: Solve for x
    x = 350,480,153,935.39/646,430.19
  6. Step 6: Final answer
    x = 542,177.89

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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.