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Finding the Fourth Proportional to 660,333.52, 990,893.76 and 239,642.20

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Solution

The fourth proportional to 660,333.52, 990,893.76 and 239,642.20 is: 359,606.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,333.52 : 990,893.76 = 239,642.20 : x
  2. Step 2: Convert to fraction form
    660,333.52/990,893.76 = 239,642.20/x
  3. Step 3: Cross multiply
    660,333.52x = 990,893.76 × 239,642.20
  4. Step 4: Simplify right side
    660,333.52x = 237,459,960,612.67
  5. Step 5: Solve for x
    x = 237,459,960,612.67/660,333.52
  6. Step 6: Final answer
    x = 359,606.10

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1.5x scale

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.