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Finding the Fourth Proportional to 570,482.82, 787,264.92 and 328,763.28

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Solution

The fourth proportional to 570,482.82, 787,264.92 and 328,763.28 is: 453,692.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,482.82 : 787,264.92 = 328,763.28 : x
  2. Step 2: Convert to fraction form
    570,482.82/787,264.92 = 328,763.28/x
  3. Step 3: Cross multiply
    570,482.82x = 787,264.92 × 328,763.28
  4. Step 4: Simplify right side
    570,482.82x = 258,823,797,328.14
  5. Step 5: Solve for x
    x = 258,823,797,328.14/570,482.82
  6. Step 6: Final answer
    x = 453,692.54

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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.