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Finding the Fourth Proportional to 871,658.79, 1,202,920.08 and 484,482.03

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Solution

The fourth proportional to 871,658.79, 1,202,920.08 and 484,482.03 is: 668,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,658.79 : 1,202,920.08 = 484,482.03 : x
  2. Step 2: Convert to fraction form
    871,658.79/1,202,920.08 = 484,482.03/x
  3. Step 3: Cross multiply
    871,658.79x = 1,202,920.08 × 484,482.03
  4. Step 4: Simplify right side
    871,658.79x = 582,793,153,849.15
  5. Step 5: Solve for x
    x = 582,793,153,849.15/871,658.79
  6. Step 6: Final answer
    x = 668,602.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.