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Finding the Fourth Proportional to 578,868.93, 798,584.45 and 349,298.28

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Solution

The fourth proportional to 578,868.93, 798,584.45 and 349,298.28 is: 481,877.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,868.93 : 798,584.45 = 349,298.28 : x
  2. Step 2: Convert to fraction form
    578,868.93/798,584.45 = 349,298.28/x
  3. Step 3: Cross multiply
    578,868.93x = 798,584.45 × 349,298.28
  4. Step 4: Simplify right side
    578,868.93x = 278,944,171,700.07
  5. Step 5: Solve for x
    x = 278,944,171,700.07/578,868.93
  6. Step 6: Final answer
    x = 481,877.95

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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.