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Finding the Fourth Proportional to 551,745.98, 761,477.46 and 310,023.28

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Solution

The fourth proportional to 551,745.98, 761,477.46 and 310,023.28 is: 427,870.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,745.98 : 761,477.46 = 310,023.28 : x
  2. Step 2: Convert to fraction form
    551,745.98/761,477.46 = 310,023.28/x
  3. Step 3: Cross multiply
    551,745.98x = 761,477.46 × 310,023.28
  4. Step 4: Simplify right side
    551,745.98x = 236,075,739,584.53
  5. Step 5: Solve for x
    x = 236,075,739,584.53/551,745.98
  6. Step 6: Final answer
    x = 427,870.34

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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.