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Finding the Fourth Proportional to 972,350.40, 1,455,415.20 and 897,700.80

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Solution

The fourth proportional to 972,350.40, 1,455,415.20 and 897,700.80 is: 1,343,679.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,350.40 : 1,455,415.20 = 897,700.80 : x
  2. Step 2: Convert to fraction form
    972,350.40/1,455,415.20 = 897,700.80/x
  3. Step 3: Cross multiply
    972,350.40x = 1,455,415.20 × 897,700.80
  4. Step 4: Simplify right side
    972,350.40x = 1,306,527,389,372.16
  5. Step 5: Solve for x
    x = 1,306,527,389,372.16/972,350.40
  6. Step 6: Final answer
    x = 1,343,679.59

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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.