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Finding the Fourth Proportional to 660,283.52, 990,818.76 and 239,592.20

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Solution

The fourth proportional to 660,283.52, 990,818.76 and 239,592.20 is: 359,531.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,283.52 : 990,818.76 = 239,592.20 : x
  2. Step 2: Convert to fraction form
    660,283.52/990,818.76 = 239,592.20/x
  3. Step 3: Cross multiply
    660,283.52x = 990,818.76 × 239,592.20
  4. Step 4: Simplify right side
    660,283.52x = 237,392,446,509.67
  5. Step 5: Solve for x
    x = 237,392,446,509.67/660,283.52
  6. Step 6: Final answer
    x = 359,531.08

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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.