Home / 728,203.84-1,005,277.90-564,498.70

Finding the Fourth Proportional to 728,203.84, 1,005,277.90 and 564,498.70

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Solution

The fourth proportional to 728,203.84, 1,005,277.90 and 564,498.70 is: 779,284.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,203.84 : 1,005,277.90 = 564,498.70 : x
  2. Step 2: Convert to fraction form
    728,203.84/1,005,277.90 = 564,498.70/x
  3. Step 3: Cross multiply
    728,203.84x = 1,005,277.90 × 564,498.70
  4. Step 4: Simplify right side
    728,203.84x = 567,478,067,688.73
  5. Step 5: Solve for x
    x = 567,478,067,688.73/728,203.84
  6. Step 6: Final answer
    x = 779,284.64

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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.