Home / 940,724.64-1,298,209.68-511,013.28

Finding the Fourth Proportional to 940,724.64, 1,298,209.68 and 511,013.28

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Solution

The fourth proportional to 940,724.64, 1,298,209.68 and 511,013.28 is: 705,203.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,724.64 : 1,298,209.68 = 511,013.28 : x
  2. Step 2: Convert to fraction form
    940,724.64/1,298,209.68 = 511,013.28/x
  3. Step 3: Cross multiply
    940,724.64x = 1,298,209.68 × 511,013.28
  4. Step 4: Simplify right side
    940,724.64x = 663,402,386,704.55
  5. Step 5: Solve for x
    x = 663,402,386,704.55/940,724.64
  6. Step 6: Final answer
    x = 705,203.58

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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.