Home / 916,128.19-1,264,258.39-508,230.04

Finding the Fourth Proportional to 916,128.19, 1,264,258.39 and 508,230.04

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Solution

The fourth proportional to 916,128.19, 1,264,258.39 and 508,230.04 is: 701,358.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,128.19 : 1,264,258.39 = 508,230.04 : x
  2. Step 2: Convert to fraction form
    916,128.19/1,264,258.39 = 508,230.04/x
  3. Step 3: Cross multiply
    916,128.19x = 1,264,258.39 × 508,230.04
  4. Step 4: Simplify right side
    916,128.19x = 642,534,092,120.04
  5. Step 5: Solve for x
    x = 642,534,092,120.04/916,128.19
  6. Step 6: Final answer
    x = 701,358.28

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Double scale
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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.