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Finding the Fourth Proportional to 720,603.54, 1,080,538.08 and 240,658.70

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Solution

The fourth proportional to 720,603.54, 1,080,538.08 and 240,658.70 is: 360,865.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,603.54 : 1,080,538.08 = 240,658.70 : x
  2. Step 2: Convert to fraction form
    720,603.54/1,080,538.08 = 240,658.70/x
  3. Step 3: Cross multiply
    720,603.54x = 1,080,538.08 × 240,658.70
  4. Step 4: Simplify right side
    720,603.54x = 260,040,883,328.14
  5. Step 5: Solve for x
    x = 260,040,883,328.14/720,603.54
  6. Step 6: Final answer
    x = 360,865.40

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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.