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Finding the Fourth Proportional to 660,466.30, 990,043.35 and 304,860.10

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Solution

The fourth proportional to 660,466.30, 990,043.35 and 304,860.10 is: 456,987.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,466.30 : 990,043.35 = 304,860.10 : x
  2. Step 2: Convert to fraction form
    660,466.30/990,043.35 = 304,860.10/x
  3. Step 3: Cross multiply
    660,466.30x = 990,043.35 × 304,860.10
  4. Step 4: Simplify right side
    660,466.30x = 301,824,714,685.34
  5. Step 5: Solve for x
    x = 301,824,714,685.34/660,466.30
  6. Step 6: Final answer
    x = 456,987.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.