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Finding the Fourth Proportional to 328,037.60, 492,056.40 and 299,007.20

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Solution

The fourth proportional to 328,037.60, 492,056.40 and 299,007.20 is: 448,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,037.60 : 492,056.40 = 299,007.20 : x
  2. Step 2: Convert to fraction form
    328,037.60/492,056.40 = 299,007.20/x
  3. Step 3: Cross multiply
    328,037.60x = 492,056.40 × 299,007.20
  4. Step 4: Simplify right side
    328,037.60x = 147,128,406,406.08
  5. Step 5: Solve for x
    x = 147,128,406,406.08/328,037.60
  6. Step 6: Final answer
    x = 448,510.80

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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.