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Finding the Fourth Proportional to 579,718.84, 799,643.82 and 418,810.36

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Solution

The fourth proportional to 579,718.84, 799,643.82 and 418,810.36 is: 577,692.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,718.84 : 799,643.82 = 418,810.36 : x
  2. Step 2: Convert to fraction form
    579,718.84/799,643.82 = 418,810.36/x
  3. Step 3: Cross multiply
    579,718.84x = 799,643.82 × 418,810.36
  4. Step 4: Simplify right side
    579,718.84x = 334,899,116,125.98
  5. Step 5: Solve for x
    x = 334,899,116,125.98/579,718.84
  6. Step 6: Final answer
    x = 577,692.31

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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.