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Finding the Fourth Proportional to 660,720.83, 991,022.91 and 240,000.35

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Solution

The fourth proportional to 660,720.83, 991,022.91 and 240,000.35 is: 359,979.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,720.83 : 991,022.91 = 240,000.35 : x
  2. Step 2: Convert to fraction form
    660,720.83/991,022.91 = 240,000.35/x
  3. Step 3: Cross multiply
    660,720.83x = 991,022.91 × 240,000.35
  4. Step 4: Simplify right side
    660,720.83x = 237,845,845,258.02
  5. Step 5: Solve for x
    x = 237,845,845,258.02/660,720.83
  6. Step 6: Final answer
    x = 359,979.34

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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.