Home / 916,128.64-1,264,258.99-508,230.47

Finding the Fourth Proportional to 916,128.64, 1,264,258.99 and 508,230.47

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Solution

The fourth proportional to 916,128.64, 1,264,258.99 and 508,230.47 is: 701,358.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,128.64 : 1,264,258.99 = 508,230.47 : x
  2. Step 2: Convert to fraction form
    916,128.64/1,264,258.99 = 508,230.47/x
  3. Step 3: Cross multiply
    916,128.64x = 1,264,258.99 × 508,230.47
  4. Step 4: Simplify right side
    916,128.64x = 642,534,940,689.43
  5. Step 5: Solve for x
    x = 642,534,940,689.43/916,128.64
  6. Step 6: Final answer
    x = 701,358.86

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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.