Home / 643,565.40-964,065.06-502,664.28

Finding the Fourth Proportional to 643,565.40, 964,065.06 and 502,664.28

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Solution

The fourth proportional to 643,565.40, 964,065.06 and 502,664.28 is: 752,994.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,565.40 : 964,065.06 = 502,664.28 : x
  2. Step 2: Convert to fraction form
    643,565.40/964,065.06 = 502,664.28/x
  3. Step 3: Cross multiply
    643,565.40x = 964,065.06 × 502,664.28
  4. Step 4: Simplify right side
    643,565.40x = 484,601,069,258.06
  5. Step 5: Solve for x
    x = 484,601,069,258.06/643,565.40
  6. Step 6: Final answer
    x = 752,994.29

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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.