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Finding the Fourth Proportional to 578,849.34, 798,840.57 and 349,402.98

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Solution

The fourth proportional to 578,849.34, 798,840.57 and 349,402.98 is: 482,193.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,849.34 : 798,840.57 = 349,402.98 : x
  2. Step 2: Convert to fraction form
    578,849.34/798,840.57 = 349,402.98/x
  3. Step 3: Cross multiply
    578,849.34x = 798,840.57 × 349,402.98
  4. Step 4: Simplify right side
    578,849.34x = 279,117,275,702.90
  5. Step 5: Solve for x
    x = 279,117,275,702.90/578,849.34
  6. Step 6: Final answer
    x = 482,193.30

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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.