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Finding the Fourth Proportional to 432,861.60, 649,292.40 and 401,368.80

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Solution

The fourth proportional to 432,861.60, 649,292.40 and 401,368.80 is: 602,053.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,861.60 : 649,292.40 = 401,368.80 : x
  2. Step 2: Convert to fraction form
    432,861.60/649,292.40 = 401,368.80/x
  3. Step 3: Cross multiply
    432,861.60x = 649,292.40 × 401,368.80
  4. Step 4: Simplify right side
    432,861.60x = 260,605,711,437.12
  5. Step 5: Solve for x
    x = 260,605,711,437.12/432,861.60
  6. Step 6: Final answer
    x = 602,053.20

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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.