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Finding the Fourth Proportional to 455,521.64, 628,619.86 and 264,547.32

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Solution

The fourth proportional to 455,521.64, 628,619.86 and 264,547.32 is: 365,075.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,521.64 : 628,619.86 = 264,547.32 : x
  2. Step 2: Convert to fraction form
    455,521.64/628,619.86 = 264,547.32/x
  3. Step 3: Cross multiply
    455,521.64x = 628,619.86 × 264,547.32
  4. Step 4: Simplify right side
    455,521.64x = 166,299,699,261.78
  5. Step 5: Solve for x
    x = 166,299,699,261.78/455,521.64
  6. Step 6: Final answer
    x = 365,075.30

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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.